152923281 has 16 divisors (see below), whose sum is σ = 233326464. Its totient is φ = 87272064.

The previous prime is 152923273. The next prime is 152923283. The reversal of 152923281 is 182329251.

It is a happy number.

It is not a de Polignac number, because 152923281 - 2³ = 152923273 is a prime.

It is a super-2 number, since 2×152923281² = 46771059743609922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (152923283) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 13645 + ... + 22181.

It is an arithmetic number, because the mean of its divisors is an integer number (14582904).

Almost surely, 2^152923281 is an apocalyptic number.

It is an amenable number.

152923281 is a deficient number, since it is larger than the sum of its proper divisors (80403183).

152923281 is an equidigital number, since it uses as much as digits as its factorization.

152923281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9400.

The product of its digits is 8640, while the sum is 33.

The square root of 152923281 is about 12366.2153062285. The cubic root of 152923281 is about 534.7587126347.

The spelling of 152923281 in words is "one hundred fifty-two million, nine hundred twenty-three thousand, two hundred eighty-one".