131154666 has 8 divisors (see below), whose sum is σ = 262309344. Its totient is φ = 43718220.

The previous prime is 131154659. The next prime is 131154689. The reversal of 131154666 is 666451131.

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

131154666 is an admirable number.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10929550 + ... + 10929561.

It is an arithmetic number, because the mean of its divisors is an integer number (32788668).

Almost surely, 2^131154666 is an apocalyptic number.

131154666 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

131154666 is a wasteful number, since it uses less digits than its factorization.

131154666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21859116.

The product of its digits is 12960, while the sum is 33.

The square root of 131154666 is about 11452.2777647069. The cubic root of 131154666 is about 508.0751046293.

The spelling of 131154666 in words is "one hundred thirty-one million, one hundred fifty-four thousand, six hundred sixty-six".