152997331 has 8 divisors (see below), whose sum is σ = 166376160. Its totient is φ = 140105088.

The previous prime is 152997323. The next prime is 152997343. The reversal of 152997331 is 133799251.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 152997331 - 2³ = 152997323 is a prime.

It is a super-2 number, since 2×152997331² = 46816366586247122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (152997371) 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, 120991 + ... + 122248.

It is an arithmetic number, because the mean of its divisors is an integer number (20797020).

Almost surely, 2^152997331 is an apocalyptic number.

152997331 is a deficient number, since it is larger than the sum of its proper divisors (13378829).

152997331 is a wasteful number, since it uses less digits than its factorization.

152997331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243293.

The product of its digits is 51030, while the sum is 40.

The square root of 152997331 is about 12369.2089884519. The cubic root of 152997331 is about 534.8450140631.

The spelling of 152997331 in words is "one hundred fifty-two million, nine hundred ninety-seven thousand, three hundred thirty-one".