145413233 has 12 divisors (see below), whose sum is σ = 169374132. Its totient is φ = 124477920.

The previous prime is 145413217. The next prime is 145413269. The reversal of 145413233 is 332314541.

It can be written as a sum of positive squares in 2 ways, for example, as 101747569 + 43665664 = 10087^2 + 6608^2 .

It is not a de Polignac number, because 145413233 - 2⁴ = 145413217 is a prime.

It is a super-2 number, since 2×145413233² = 42290016663024578, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145413283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50591 + ... + 53387.

It is an arithmetic number, because the mean of its divisors is an integer number (14114511).

Almost surely, 2^145413233 is an apocalyptic number.

It is an amenable number.

145413233 is a deficient number, since it is larger than the sum of its proper divisors (23960899).

145413233 is a wasteful number, since it uses less digits than its factorization.

145413233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3872 (or 3865 counting only the distinct ones).

The product of its digits is 4320, while the sum is 26.

The square root of 145413233 is about 12058.7409375938. The cubic root of 145413233 is about 525.8573842178.

Adding to 145413233 its reverse (332314541), we get a palindrome (477727774).

The spelling of 145413233 in words is "one hundred forty-five million, four hundred thirteen thousand, two hundred thirty-three".