131418355 has 4 divisors (see below), whose sum is σ = 157702032. Its totient is φ = 105134680.

The previous prime is 131418281. The next prime is 131418359. The reversal of 131418355 is 553814131.

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

It is a de Polignac number, because none of the positive numbers 2^k-131418355 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131418359) 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, 13141831 + ... + 13141840.

It is an arithmetic number, because the mean of its divisors is an integer number (39425508).

Almost surely, 2^131418355 is an apocalyptic number.

131418355 is a deficient number, since it is larger than the sum of its proper divisors (26283677).

131418355 is an equidigital number, since it uses as much as digits as its factorization.

131418355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26283676.

The product of its digits is 7200, while the sum is 31.

The square root of 131418355 is about 11463.7844972766. The cubic root of 131418355 is about 508.4153749753.

The spelling of 131418355 in words is "one hundred thirty-one million, four hundred eighteen thousand, three hundred fifty-five".