131862213 has 24 divisors (see below), whose sum is σ = 222313728. Its totient is φ = 73744992.

The previous prime is 131862167. The next prime is 131862221. The reversal of 131862213 is 312268131.

It is a happy number.

131862213 is a `hidden beast` number, since 1 + 31 + 8 + 622 + 1 + 3 = 666.

It is not a de Polignac number, because 131862213 - 2¹⁰ = 131861189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131862253) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19306 + ... + 25227.

It is an arithmetic number, because the mean of its divisors is an integer number (9263072).

Almost surely, 2^131862213 is an apocalyptic number.

It is an amenable number.

131862213 is a deficient number, since it is larger than the sum of its proper divisors (90451515).

131862213 is a wasteful number, since it uses less digits than its factorization.

131862213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44593 (or 44590 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 131862213 is about 11483.1273179391. The cubic root of 131862213 is about 508.9871130990.

The spelling of 131862213 in words is "one hundred thirty-one million, eight hundred sixty-two thousand, two hundred thirteen".