131634823 has 2 divisors, whose sum is σ = 131634824. Its totient is φ = 131634822.

The previous prime is 131634787. The next prime is 131634847. The reversal of 131634823 is 328436131.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131634823 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131634883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65817411 + 65817412.

It is an arithmetic number, because the mean of its divisors is an integer number (65817412).

Almost surely, 2^131634823 is an apocalyptic number.

131634823 is a deficient number, since it is larger than the sum of its proper divisors (1).

131634823 is an equidigital number, since it uses as much as digits as its factorization.

131634823 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 31.

The square root of 131634823 is about 11473.2219973293. The cubic root of 131634823 is about 508.6943702190.

The spelling of 131634823 in words is "one hundred thirty-one million, six hundred thirty-four thousand, eight hundred twenty-three".