145903492 has 12 divisors (see below), whose sum is σ = 291807040. Its totient is φ = 62530056.

The previous prime is 145903481. The next prime is 145903523. The reversal of 145903492 is 294309541.

145903492 is an admirable number.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2605392 + ... + 2605447.

Almost surely, 2^145903492 is an apocalyptic number.

It is an amenable number.

145903492 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

145903492 is a wasteful number, since it uses less digits than its factorization.

145903492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5210850 (or 5210848 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 145903492 is about 12079.0517839771. The cubic root of 145903492 is about 526.4476952947.

The spelling of 145903492 in words is "one hundred forty-five million, nine hundred three thousand, four hundred ninety-two".