131027681 has 8 divisors (see below), whose sum is σ = 135005184. Its totient is φ = 127099840.

The previous prime is 131027671. The next prime is 131027707. The reversal of 131027681 is 186720131.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131027681 is a prime.

It is a super-2 number, since 2×131027681² = 34336506376475522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131027621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7025 + ... + 17646.

It is an arithmetic number, because the mean of its divisors is an integer number (16875648).

Almost surely, 2^131027681 is an apocalyptic number.

It is an amenable number.

131027681 is a deficient number, since it is larger than the sum of its proper divisors (3977503).

131027681 is a wasteful number, since it uses less digits than its factorization.

131027681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24831.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 131027681 is about 11446.7323284857. The cubic root of 131027681 is about 507.9110775494.

The spelling of 131027681 in words is "one hundred thirty-one million, twenty-seven thousand, six hundred eighty-one".