131633677 has 4 divisors (see below), whose sum is σ = 150438496. Its totient is φ = 112828860.

The previous prime is 131633659. The next prime is 131633681. The reversal of 131633677 is 776336131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131633677 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 (131633617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9402399 + ... + 9402412.

It is an arithmetic number, because the mean of its divisors is an integer number (37609624).

Almost surely, 2^131633677 is an apocalyptic number.

It is an amenable number.

131633677 is a deficient number, since it is larger than the sum of its proper divisors (18804819).

131633677 is an equidigital number, since it uses as much as digits as its factorization.

131633677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18804818.

The product of its digits is 47628, while the sum is 37.

The square root of 131633677 is about 11473.1720548417. The cubic root of 131633677 is about 508.6928940001.

The spelling of 131633677 in words is "one hundred thirty-one million, six hundred thirty-three thousand, six hundred seventy-seven".