131274618 has 8 divisors (see below), whose sum is σ = 262549248. Its totient is φ = 43758204.

The previous prime is 131274607. The next prime is 131274653. The reversal of 131274618 is 816472131.

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

131274618 is an admirable number.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10939546 + ... + 10939557.

It is an arithmetic number, because the mean of its divisors is an integer number (32818656).

Almost surely, 2^131274618 is an apocalyptic number.

131274618 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.

131274618 is a wasteful number, since it uses less digits than its factorization.

131274618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21879108.

The product of its digits is 8064, while the sum is 33.

The square root of 131274618 is about 11457.5136046177. The cubic root of 131274618 is about 508.2299499392.

The spelling of 131274618 in words is "one hundred thirty-one million, two hundred seventy-four thousand, six hundred eighteen".