145892272 has 20 divisors (see below), whose sum is σ = 292414320. Its totient is φ = 70430528.

The previous prime is 145892269. The next prime is 145892281. The reversal of 145892272 is 272298541.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 156748 + ... + 157675.

It is an arithmetic number, because the mean of its divisors is an integer number (14620716).

Almost surely, 2^145892272 is an apocalyptic number.

It is an amenable number.

145892272 is an abundant number, since it is smaller than the sum of its proper divisors (146522048).

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

145892272 is a wasteful number, since it uses less digits than its factorization.

145892272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314460 (or 314454 counting only the distinct ones).

The product of its digits is 80640, while the sum is 40.

The square root of 145892272 is about 12078.5873346182. The cubic root of 145892272 is about 526.4342003137.

It can be divided in two parts, 14589 and 2272, that added together give a palindrome (16861).

The spelling of 145892272 in words is "one hundred forty-five million, eight hundred ninety-two thousand, two hundred seventy-two".