131402453 has 16 divisors (see below), whose sum is σ = 165492096. Its totient is φ = 101545920.

The previous prime is 131402449. The next prime is 131402497. The reversal of 131402453 is 354204131.

It is not a de Polignac number, because 131402453 - 2² = 131402449 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131402413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12878 + ... + 20703.

It is an arithmetic number, because the mean of its divisors is an integer number (10343256).

Almost surely, 2^131402453 is an apocalyptic number.

131402453 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

131402453 is a deficient number, since it is larger than the sum of its proper divisors (34089643).

131402453 is a wasteful number, since it uses less digits than its factorization.

131402453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33644.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 131402453 is about 11463.0909007998. The cubic root of 131402453 is about 508.3948675726.

Adding to 131402453 its reverse (354204131), we get a palindrome (485606584).

The spelling of 131402453 in words is "one hundred thirty-one million, four hundred two thousand, four hundred fifty-three".