131356706 has 8 divisors (see below), whose sum is σ = 212191644. Its totient is φ = 60626160.

The previous prime is 131356639. The next prime is 131356727. The reversal of 131356706 is 607653131.

It can be written as a sum of positive squares in 2 ways, for example, as 105904681 + 25452025 = 10291^2 + 5045^2 .

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

It is a super-2 number, since 2×131356706² = 34509168422340872, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2526065 + ... + 2526116.

Almost surely, 2^131356706 is an apocalyptic number.

131356706 is a deficient number, since it is larger than the sum of its proper divisors (80834938).

131356706 is a wasteful number, since it uses less digits than its factorization.

131356706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5052196.

The product of its (nonzero) digits is 11340, while the sum is 32.

The square root of 131356706 is about 11461.0953228738. The cubic root of 131356706 is about 508.3358624856.

The spelling of 131356706 in words is "one hundred thirty-one million, three hundred fifty-six thousand, seven hundred six".