145906252 has 12 divisors (see below), whose sum is σ = 255431176. Its totient is φ = 72925920.

The previous prime is 145906219. The next prime is 145906253. The reversal of 145906252 is 252609541.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (145906253) 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, 9727 + ... + 19657.

Almost surely, 2^145906252 is an apocalyptic number.

It is an amenable number.

145906252 is a deficient number, since it is larger than the sum of its proper divisors (109524924).

145906252 is a wasteful number, since it uses less digits than its factorization.

145906252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13608 (or 13606 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 34.

The square root of 145906252 is about 12079.1660308152. The cubic root of 145906252 is about 526.4510148096.

The spelling of 145906252 in words is "one hundred forty-five million, nine hundred six thousand, two hundred fifty-two".