131315451 has 16 divisors (see below), whose sum is σ = 181812000. Its totient is φ = 84204288.

The previous prime is 131315449. The next prime is 131315467. The reversal of 131315451 is 154513131.

It is not a de Polignac number, because 131315451 - 2¹ = 131315449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131315491) 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, 21375 + ... + 26823.

It is an arithmetic number, because the mean of its divisors is an integer number (11363250).

Almost surely, 2^131315451 is an apocalyptic number.

131315451 is a deficient number, since it is larger than the sum of its proper divisors (50496549).

131315451 is a wasteful number, since it uses less digits than its factorization.

131315451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5758.

The product of its digits is 900, while the sum is 24.

The square root of 131315451 is about 11459.2953971874. The cubic root of 131315451 is about 508.2826394907.

Adding to 131315451 its reverse (154513131), we get a palindrome (285828582).

The spelling of 131315451 in words is "one hundred thirty-one million, three hundred fifteen thousand, four hundred fifty-one".