145274492 has 24 divisors (see below), whose sum is σ = 281487360. Its totient is φ = 65046960.

The previous prime is 145274491. The next prime is 145274497. The reversal of 145274492 is 294472541.

145274492 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×145274492² = 42209356051716128, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145274491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21692 + ... + 27587.

It is an arithmetic number, because the mean of its divisors is an integer number (11728640).

Almost surely, 2^145274492 is an apocalyptic number.

It is an amenable number.

145274492 is a deficient number, since it is larger than the sum of its proper divisors (136212868).

145274492 is a wasteful number, since it uses less digits than its factorization.

145274492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49361 (or 49359 counting only the distinct ones).

The product of its digits is 80640, while the sum is 38.

The square root of 145274492 is about 12052.9868497398. The cubic root of 145274492 is about 525.6900881298.

The spelling of 145274492 in words is "one hundred forty-five million, two hundred seventy-four thousand, four hundred ninety-two".