131064387 has 16 divisors (see below), whose sum is σ = 180985728. Its totient is φ = 84309120.

The previous prime is 131064383. The next prime is 131064421. The reversal of 131064387 is 783460131.

It is not a de Polignac number, because 131064387 - 2² = 131064383 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131064383) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4587 + ... + 16827.

It is an arithmetic number, because the mean of its divisors is an integer number (11311608).

Almost surely, 2^131064387 is an apocalyptic number.

131064387 is a deficient number, since it is larger than the sum of its proper divisors (49921341).

131064387 is a wasteful number, since it uses less digits than its factorization.

131064387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12370.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 131064387 is about 11448.3355558789. The cubic root of 131064387 is about 507.9585017355.

The spelling of 131064387 in words is "one hundred thirty-one million, sixty-four thousand, three hundred eighty-seven".