151531465 has 16 divisors (see below), whose sum is σ = 187489872. Its totient is φ = 117483264.

The previous prime is 151531459. The next prime is 151531487. The reversal of 151531465 is 564135151.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 5508409 + 146023056 = 2347^2 + 12084^2 .

It is a cyclic number.

It is not a de Polignac number, because 151531465 - 2⁵ = 151531433 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49767 + ... + 52723.

It is an arithmetic number, because the mean of its divisors is an integer number (11718117).

Almost surely, 2^151531465 is an apocalyptic number.

It is an amenable number.

151531465 is a deficient number, since it is larger than the sum of its proper divisors (35958407).

151531465 is a wasteful number, since it uses less digits than its factorization.

151531465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3276.

The product of its digits is 9000, while the sum is 31.

The square root of 151531465 is about 12309.8117369844. The cubic root of 151531465 is about 533.1314146662.

The spelling of 151531465 in words is "one hundred fifty-one million, five hundred thirty-one thousand, four hundred sixty-five".