145532021411 has 4 divisors (see below), whose sum is σ = 166322310192. Its totient is φ = 124741732632.

The previous prime is 145532021357. The next prime is 145532021413. The reversal of 145532021411 is 114120235541.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 114120235541 = 13 ⋅8778479657.

It is a cyclic number.

It is not a de Polignac number, because 145532021411 - 2²⁶ = 145464912547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145532021413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10395144380 + ... + 10395144393.

It is an arithmetic number, because the mean of its divisors is an integer number (41580577548).

Almost surely, 2^145532021411 is an apocalyptic number.

145532021411 is a deficient number, since it is larger than the sum of its proper divisors (20790288781).

145532021411 is an equidigital number, since it uses as much as digits as its factorization.

145532021411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20790288780.

The product of its (nonzero) digits is 4800, while the sum is 29.

Adding to 145532021411 its reverse (114120235541), we get a palindrome (259652256952).

The spelling of 145532021411 in words is "one hundred forty-five billion, five hundred thirty-two million, twenty-one thousand, four hundred eleven".