145304333 has 4 divisors (see below), whose sum is σ = 145443900. Its totient is φ = 145164768.

The previous prime is 145304329. The next prime is 145304339. The reversal of 145304333 is 333403541.

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: 333403541 = 17 ⋅19611973.

It can be written as a sum of positive squares in 2 ways, for example, as 93276964 + 52027369 = 9658^2 + 7213^2 .

It is a cyclic number.

It is not a de Polignac number, because 145304333 - 2² = 145304329 is a prime.

It is a super-2 number, since 2×145304333² = 42226698377149778, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145304339) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 68210 + ... + 70307.

It is an arithmetic number, because the mean of its divisors is an integer number (36360975).

Almost surely, 2^145304333 is an apocalyptic number.

It is an amenable number.

145304333 is a deficient number, since it is larger than the sum of its proper divisors (139567).

145304333 is a wasteful number, since it uses less digits than its factorization.

145304333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139566.

The product of its (nonzero) digits is 6480, while the sum is 26.

The square root of 145304333 is about 12054.2246951017. The cubic root of 145304333 is about 525.7260798668.

Adding to 145304333 its reverse (333403541), we get a palindrome (478707874).

The spelling of 145304333 in words is "one hundred forty-five million, three hundred four thousand, three hundred thirty-three".