131646741 has 4 divisors (see below), whose sum is σ = 175528992. Its totient is φ = 87764492.

The previous prime is 131646731. The next prime is 131646769. The reversal of 131646741 is 147646131.

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-131646741 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131646721) 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, 21941121 + ... + 21941126.

It is an arithmetic number, because the mean of its divisors is an integer number (43882248).

Almost surely, 2^131646741 is an apocalyptic number.

It is an amenable number.

131646741 is a deficient number, since it is larger than the sum of its proper divisors (43882251).

131646741 is an equidigital number, since it uses as much as digits as its factorization.

131646741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43882250.

The product of its digits is 12096, while the sum is 33.

The square root of 131646741 is about 11473.7413688823. The cubic root of 131646741 is about 508.7097218725.

The spelling of 131646741 in words is "one hundred thirty-one million, six hundred forty-six thousand, seven hundred forty-one".