456157321 has 8 divisors (see below), whose sum is σ = 482696064. Its totient is φ = 430177440.

The previous prime is 456157319. The next prime is 456157369. The reversal of 456157321 is 123751654.

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 456157321 - 2¹ = 456157319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (456157421) 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, 138036 + ... + 141301.

It is an arithmetic number, because the mean of its divisors is an integer number (60337008).

Almost surely, 2^456157321 is an apocalyptic number.

It is an amenable number.

456157321 is a deficient number, since it is larger than the sum of its proper divisors (26538743).

456157321 is a wasteful number, since it uses less digits than its factorization.

456157321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279431.

The product of its digits is 25200, while the sum is 34.

The square root of 456157321 is about 21357.8398018152. The cubic root of 456157321 is about 769.7887321666.

The spelling of 456157321 in words is "four hundred fifty-six million, one hundred fifty-seven thousand, three hundred twenty-one".