131622479 has 8 divisors (see below), whose sum is σ = 135726192. Its totient is φ = 127578880.

The previous prime is 131622473. The next prime is 131622499. The reversal of 131622479 is 974226131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131622479 - 2⁸ = 131622223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131622473) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10562 + ... + 19359.

It is an arithmetic number, because the mean of its divisors is an integer number (16965774).

Almost surely, 2^131622479 is an apocalyptic number.

131622479 is a deficient number, since it is larger than the sum of its proper divisors (4103713).

131622479 is an equidigital number, since it uses as much as digits as its factorization.

131622479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30057.

The product of its digits is 18144, while the sum is 35.

The square root of 131622479 is about 11472.6840364406. The cubic root of 131622479 is about 508.6784688553.

The spelling of 131622479 in words is "one hundred thirty-one million, six hundred twenty-two thousand, four hundred seventy-nine".