131474787 has 16 divisors (see below), whose sum is σ = 186050592. Its totient is φ = 82298880.

The previous prime is 131474773. The next prime is 131474789. The reversal of 131474787 is 787474131.

It is not a de Polignac number, because 131474787 - 2⁸ = 131474531 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131474789) 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, 20487 + ... + 26127.

It is an arithmetic number, because the mean of its divisors is an integer number (11628162).

Almost surely, 2^131474787 is an apocalyptic number.

131474787 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

131474787 is a deficient number, since it is larger than the sum of its proper divisors (54575805).

131474787 is a wasteful number, since it uses less digits than its factorization.

131474787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6118.

The product of its digits is 131712, while the sum is 42.

The square root of 131474787 is about 11466.2455494377. The cubic root of 131474787 is about 508.4881369847.

The spelling of 131474787 in words is "one hundred thirty-one million, four hundred seventy-four thousand, seven hundred eighty-seven".