131201776 has 20 divisors (see below), whose sum is σ = 254414272. Its totient is φ = 65546496.

The previous prime is 131201773. The next prime is 131201813. The reversal of 131201776 is 677102131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131201773) by changing a digit.

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, 22456 + ... + 27688.

Almost surely, 2^131201776 is an apocalyptic number.

131201776 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

131201776 is a deficient number, since it is larger than the sum of its proper divisors (123212496).

131201776 is a wasteful number, since it uses less digits than its factorization.

131201776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6808 (or 6802 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 28.

The square root of 131201776 is about 11454.3343761216. The cubic root of 131201776 is about 508.1359298968.

The spelling of 131201776 in words is "one hundred thirty-one million, two hundred one thousand, seven hundred seventy-six".