131623353 has 8 divisors (see below), whose sum is σ = 194997600. Its totient is φ = 87748884.

The previous prime is 131623351. The next prime is 131623357. The reversal of 131623353 is 353326131.

It is a happy number.

131623353 is a `hidden beast` number, since 1 + 3 + 1 + 623 + 35 + 3 = 666.

It is not a de Polignac number, because 131623353 - 2¹ = 131623351 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 4874939 = 131623353 / (1 + 3 + 1 + 6 + 2 + 3 + 3 + 5 + 3).

It is not an unprimeable number, because it can be changed into a prime (131623351) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2437443 + ... + 2437496.

It is an arithmetic number, because the mean of its divisors is an integer number (24374700).

Almost surely, 2^131623353 is an apocalyptic number.

It is an amenable number.

131623353 is a deficient number, since it is larger than the sum of its proper divisors (63374247).

131623353 is an equidigital number, since it uses as much as digits as its factorization.

131623353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4874948 (or 4874942 counting only the distinct ones).

The product of its digits is 4860, while the sum is 27.

The square root of 131623353 is about 11472.7221268538. The cubic root of 131623353 is about 508.6795947623.

Adding to 131623353 its reverse (353326131), we get a palindrome (484949484).

The spelling of 131623353 in words is "one hundred thirty-one million, six hundred twenty-three thousand, three hundred fifty-three".