131077807 has 4 divisors (see below), whose sum is σ = 149803216. Its totient is φ = 112352400.

The previous prime is 131077801. The next prime is 131077813. The reversal of 131077807 is 708770131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 708770131 = 1699 ⋅417169.

It is an interprime number because it is at equal distance from previous prime (131077801) and next prime (131077813).

It is a cyclic number.

It is not a de Polignac number, because 131077807 - 2¹⁹ = 130553519 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 (131077801) 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, 9362694 + ... + 9362707.

It is an arithmetic number, because the mean of its divisors is an integer number (37450804).

Almost surely, 2^131077807 is an apocalyptic number.

131077807 is a deficient number, since it is larger than the sum of its proper divisors (18725409).

131077807 is an equidigital number, since it uses as much as digits as its factorization.

131077807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18725408.

The product of its (nonzero) digits is 8232, while the sum is 34.

The square root of 131077807 is about 11448.9216522780. The cubic root of 131077807 is about 507.9758381775.

The spelling of 131077807 in words is "one hundred thirty-one million, seventy-seven thousand, eight hundred seven".