145237252 has 24 divisors (see below), whose sum is σ = 261001440. Its totient is φ = 70674240.

The previous prime is 145237243. The next prime is 145237271. The reversal of 145237252 is 252732541.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88899 + ... + 90517.

It is an arithmetic number, because the mean of its divisors is an integer number (10875060).

Almost surely, 2^145237252 is an apocalyptic number.

It is an amenable number.

145237252 is a deficient number, since it is larger than the sum of its proper divisors (115764188).

145237252 is a wasteful number, since it uses less digits than its factorization.

145237252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2211 (or 2209 counting only the distinct ones).

The product of its digits is 16800, while the sum is 31.

The square root of 145237252 is about 12051.4419054319. The cubic root of 145237252 is about 525.6451654191.

Adding to 145237252 its reverse (252732541), we get a palindrome (397969793).

The spelling of 145237252 in words is "one hundred forty-five million, two hundred thirty-seven thousand, two hundred fifty-two".