131641623 has 12 divisors (see below), whose sum is σ = 190595808. Its totient is φ = 87554880.

The previous prime is 131641621. The next prime is 131641661. The reversal of 131641623 is 326146131.

131641623 is a `hidden beast` number, since 1 + 31 + 6 + 4 + 1 + 623 = 666.

It is not a de Polignac number, because 131641623 - 2¹ = 131641621 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131641621) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13090 + ... + 20847.

It is an arithmetic number, because the mean of its divisors is an integer number (15882984).

Almost surely, 2^131641623 is an apocalyptic number.

131641623 is a deficient number, since it is larger than the sum of its proper divisors (58954185).

131641623 is a wasteful number, since it uses less digits than its factorization.

131641623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34374 (or 34371 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 131641623 is about 11473.5183357155. The cubic root of 131641623 is about 508.7031294568.

Adding to 131641623 its reverse (326146131), we get a palindrome (457787754).

The spelling of 131641623 in words is "one hundred thirty-one million, six hundred forty-one thousand, six hundred twenty-three".