131386834 has 12 divisors (see below), whose sum is σ = 198693054. Its totient is φ = 65160144.

The previous prime is 131386819. The next prime is 131386847. The reversal of 131386834 is 438683131.

It can be written as a sum of positive squares in only one way, i.e., 127757809 + 3629025 = 11303^2 + 1905^2 .

It is a junction number, because it is equal to n+sod(n) for n = 131386793 and 131386802.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30222 + ... + 34294.

Almost surely, 2^131386834 is an apocalyptic number.

131386834 is a deficient number, since it is larger than the sum of its proper divisors (67306220).

131386834 is an equidigital number, since it uses as much as digits as its factorization.

131386834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4329 (or 4202 counting only the distinct ones).

The product of its digits is 41472, while the sum is 37.

The square root of 131386834 is about 11462.4096070591. The cubic root of 131386834 is about 508.3747235192.

The spelling of 131386834 in words is "one hundred thirty-one million, three hundred eighty-six thousand, eight hundred thirty-four".