131464217 has 6 divisors (see below), whose sum is σ = 134323098. Its totient is φ = 128664944.

The previous prime is 131464169. The next prime is 131464231. The reversal of 131464217 is 712464131.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 66113161 + 65351056 = 8131^2 + 8084^2 .

It is not a de Polignac number, because 131464217 - 2⁸ = 131463961 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131464217.

It is not an unprimeable number, because it can be changed into a prime (131464517) 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 5 ways as a sum of consecutive naturals, for example, 27548 + ... + 31965.

It is an arithmetic number, because the mean of its divisors is an integer number (22387183).

Almost surely, 2^131464217 is an apocalyptic number.

It is an amenable number.

131464217 is a deficient number, since it is larger than the sum of its proper divisors (2858881).

131464217 is an frugal number, since it uses more digits than its factorization.

131464217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59607 (or 59560 counting only the distinct ones).

The product of its digits is 4032, while the sum is 29.

The square root of 131464217 is about 11465.7846220832. The cubic root of 131464217 is about 508.4745098760.

The spelling of 131464217 in words is "one hundred thirty-one million, four hundred sixty-four thousand, two hundred seventeen".