131541455 has 4 divisors (see below), whose sum is σ = 157849752. Its totient is φ = 105233160.

The previous prime is 131541451. The next prime is 131541467. The reversal of 131541455 is 554145131.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 131541455 - 2² = 131541451 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 (131541451) 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, 13154141 + ... + 13154150.

It is an arithmetic number, because the mean of its divisors is an integer number (39462438).

Almost surely, 2^131541455 is an apocalyptic number.

131541455 is a deficient number, since it is larger than the sum of its proper divisors (26308297).

131541455 is an equidigital number, since it uses as much as digits as its factorization.

131541455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26308296.

The product of its digits is 6000, while the sum is 29.

The square root of 131541455 is about 11469.1523226436. The cubic root of 131541455 is about 508.5740702133.

Adding to 131541455 its reverse (554145131), we get a palindrome (685686586).

The spelling of 131541455 in words is "one hundred thirty-one million, five hundred forty-one thousand, four hundred fifty-five".