131087764 has 36 divisors (see below), whose sum is σ = 252703584. Its totient is φ = 59379408.

The previous prime is 131087729. The next prime is 131087771. The reversal of 131087764 is 467780131.

It is a super-3 number, since 3×131087764³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31239 + ... + 35185.

It is an arithmetic number, because the mean of its divisors is an integer number (7019544).

Almost surely, 2^131087764 is an apocalyptic number.

It is an amenable number.

131087764 is a deficient number, since it is larger than the sum of its proper divisors (121615820).

131087764 is a wasteful number, since it uses less digits than its factorization.

131087764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4012 (or 3991 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 37.

The square root of 131087764 is about 11449.3564884669. The cubic root of 131087764 is about 507.9887002261.

The spelling of 131087764 in words is "one hundred thirty-one million, eighty-seven thousand, seven hundred sixty-four".