131801077 has 8 divisors (see below), whose sum is σ = 132903936. Its totient is φ = 130702992.

The previous prime is 131801071. The next prime is 131801099. The reversal of 131801077 is 770108131.

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-131801077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131801071) 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, 71388 + ... + 73210.

It is an arithmetic number, because the mean of its divisors is an integer number (16612992).

Almost surely, 2^131801077 is an apocalyptic number.

It is an amenable number.

131801077 is a deficient number, since it is larger than the sum of its proper divisors (1102859).

131801077 is a wasteful number, since it uses less digits than its factorization.

131801077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2387.

The product of its (nonzero) digits is 1176, while the sum is 28.

The square root of 131801077 is about 11480.4650167143. The cubic root of 131801077 is about 508.9084394448.

The spelling of 131801077 in words is "one hundred thirty-one million, eight hundred one thousand, seventy-seven".