145087272 has 48 divisors (see below), whose sum is σ = 428669280. Its totient is φ = 43965600.

The previous prime is 145087259. The next prime is 145087291. The reversal of 145087272 is 272780541.

145087272 is a `hidden beast` number, since 14 + 508 + 72 + 72 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 90804 + ... + 92387.

It is an arithmetic number, because the mean of its divisors is an integer number (8930610).

Almost surely, 2^145087272 is an apocalyptic number.

145087272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

145087272 is an abundant number, since it is smaller than the sum of its proper divisors (283582008).

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

145087272 is a wasteful number, since it uses less digits than its factorization.

145087272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183214 (or 183207 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 36.

The square root of 145087272 is about 12045.2178062499. The cubic root of 145087272 is about 525.4641663681.

The spelling of 145087272 in words is "one hundred forty-five million, eighty-seven thousand, two hundred seventy-two".