131356570 has 8 divisors (see below), whose sum is σ = 236441844. Its totient is φ = 52542624.

The previous prime is 131356553. The next prime is 131356571. The reversal of 131356570 is 75653131.

It can be written as a sum of positive squares in 2 ways, for example, as 125417601 + 5938969 = 11199^2 + 2437^2 .

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 (131356571) 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, 6567819 + ... + 6567838.

Almost surely, 2^131356570 is an apocalyptic number.

131356570 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131356570 is a deficient number, since it is larger than the sum of its proper divisors (105085274).

131356570 is a wasteful number, since it uses less digits than its factorization.

131356570 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13135664.

The product of its (nonzero) digits is 9450, while the sum is 31.

The square root of 131356570 is about 11461.0893897570. The cubic root of 131356570 is about 508.3356870505.

The spelling of 131356570 in words is "one hundred thirty-one million, three hundred fifty-six thousand, five hundred seventy".