151531566 has 16 divisors (see below), whose sum is σ = 303723264. Its totient is φ = 50400504.

The previous prime is 151531519. The next prime is 151531577. The reversal of 151531566 is 665135151.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24496 + ... + 30051.

It is an arithmetic number, because the mean of its divisors is an integer number (18982704).

Almost surely, 2^151531566 is an apocalyptic number.

151531566 is an abundant number, since it is smaller than the sum of its proper divisors (152191698).

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

151531566 is a wasteful number, since it uses less digits than its factorization.

151531566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55015.

The product of its digits is 13500, while the sum is 33.

The square root of 151531566 is about 12309.8158394023. The cubic root of 151531566 is about 533.1315331152.

The spelling of 151531566 in words is "one hundred fifty-one million, five hundred thirty-one thousand, five hundred sixty-six".