131394417 has 16 divisors (see below), whose sum is σ = 218422272. Its totient is φ = 68256720.

The previous prime is 131394407. The next prime is 131394421. The reversal of 131394417 is 714493131.

It is not a de Polignac number, because 131394417 - 2⁴ = 131394401 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (131394407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 284173 + ... + 284634.

It is an arithmetic number, because the mean of its divisors is an integer number (13651392).

Almost surely, 2^131394417 is an apocalyptic number.

It is an amenable number.

131394417 is a deficient number, since it is larger than the sum of its proper divisors (87027855).

131394417 is a wasteful number, since it uses less digits than its factorization.

131394417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 568828.

The product of its digits is 9072, while the sum is 33.

The square root of 131394417 is about 11462.7403791589. The cubic root of 131394417 is about 508.3845036249.

The spelling of 131394417 in words is "one hundred thirty-one million, three hundred ninety-four thousand, four hundred seventeen".