145133252 has 12 divisors (see below), whose sum is σ = 277072656. Its totient is φ = 65969640.

The previous prime is 145133251. The next prime is 145133257. The reversal of 145133252 is 252331541.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (145133251) 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, 1649198 + ... + 1649285.

It is an arithmetic number, because the mean of its divisors is an integer number (23089388).

Almost surely, 2^145133252 is an apocalyptic number.

It is an amenable number.

145133252 is a deficient number, since it is larger than the sum of its proper divisors (131939404).

145133252 is a wasteful number, since it uses less digits than its factorization.

145133252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3298498 (or 3298496 counting only the distinct ones).

The product of its digits is 3600, while the sum is 26.

The square root of 145133252 is about 12047.1262963414. The cubic root of 145133252 is about 525.5196692623.

Adding to 145133252 its reverse (252331541), we get a palindrome (397464793).

The spelling of 145133252 in words is "one hundred forty-five million, one hundred thirty-three thousand, two hundred fifty-two".