131202453 has 4 divisors (see below), whose sum is σ = 174936608. Its totient is φ = 87468300.

The previous prime is 131202451. The next prime is 131202457. The reversal of 131202453 is 354202131.

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, and also an emirpimes, since its reverse is a distinct semiprime: 354202131 = 3 ⋅118067377.

It is not a de Polignac number, because 131202453 - 2¹ = 131202451 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131202451) 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, 21867073 + ... + 21867078.

It is an arithmetic number, because the mean of its divisors is an integer number (43734152).

Almost surely, 2^131202453 is an apocalyptic number.

It is an amenable number.

131202453 is a deficient number, since it is larger than the sum of its proper divisors (43734155).

131202453 is an equidigital number, since it uses as much as digits as its factorization.

131202453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43734154.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 131202453 is about 11454.3639282153. The cubic root of 131202453 is about 508.1368038876.

Adding to 131202453 its reverse (354202131), we get a palindrome (485404584).

The spelling of 131202453 in words is "one hundred thirty-one million, two hundred two thousand, four hundred fifty-three".