131356426 has 8 divisors (see below), whose sum is σ = 197564004. Its totient is φ = 65501760.

The previous prime is 131356417. The next prime is 131356429. The reversal of 131356426 is 624653131.

It can be written as a sum of positive squares in 2 ways, for example, as 121110025 + 10246401 = 11005^2 + 3201^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (131356429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87295 + ... + 88786.

Almost surely, 2^131356426 is an apocalyptic number.

131356426 is a deficient number, since it is larger than the sum of its proper divisors (66207578).

131356426 is a wasteful number, since it uses less digits than its factorization.

131356426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176456.

The product of its digits is 12960, while the sum is 31.

The square root of 131356426 is about 11461.0831076299. The cubic root of 131356426 is about 508.3355012957.

The spelling of 131356426 in words is "one hundred thirty-one million, three hundred fifty-six thousand, four hundred twenty-six".