145402213433 has 4 divisors (see below), whose sum is σ = 145720380660. Its totient is φ = 145084046208.

The previous prime is 145402213381. The next prime is 145402213457. The reversal of 145402213433 is 334312204541.

145402213433 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 57636965929 + 87765247504 = 240077^2 + 296252^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-145402213433 is a prime.

It is a super-2 number, since 2×145402213433² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 145402213433.

It is not an unprimeable number, because it can be changed into a prime (145402213493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159082928 + ... + 159083841.

It is an arithmetic number, because the mean of its divisors is an integer number (36430095165).

Almost surely, 2^145402213433 is an apocalyptic number.

It is an amenable number.

145402213433 is a deficient number, since it is larger than the sum of its proper divisors (318167227).

145402213433 is an equidigital number, since it uses as much as digits as its factorization.

145402213433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318167226.

The product of its (nonzero) digits is 34560, while the sum is 32.

Adding to 145402213433 its reverse (334312204541), we get a palindrome (479714417974).

The spelling of 145402213433 in words is "one hundred forty-five billion, four hundred two million, two hundred thirteen thousand, four hundred thirty-three".