131470321 has 4 divisors (see below), whose sum is σ = 131502592. Its totient is φ = 131438052.

The previous prime is 131470303. The next prime is 131470337. The reversal of 131470321 is 123074131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 131470321 - 2¹³ = 131462129 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131470292 and 131470301.

It is not an unprimeable number, because it can be changed into a prime (131470621) 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, 8961 + ... + 18526.

It is an arithmetic number, because the mean of its divisors is an integer number (32875648).

Almost surely, 2^131470321 is an apocalyptic number.

It is an amenable number.

131470321 is a deficient number, since it is larger than the sum of its proper divisors (32271).

131470321 is an equidigital number, since it uses as much as digits as its factorization.

131470321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32270.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 131470321 is about 11466.0508022597. The cubic root of 131470321 is about 508.4823793947.

The spelling of 131470321 in words is "one hundred thirty-one million, four hundred seventy thousand, three hundred twenty-one".