320253451 has 4 divisors (see below), whose sum is σ = 366003952. Its totient is φ = 274502952.

The previous prime is 320253443. The next prime is 320253469. The reversal of 320253451 is 154352023.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 154352023 = 7 ⋅22050289.

It is a cyclic number.

It is not a de Polignac number, because 320253451 - 2³ = 320253443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320253421) 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, 22875240 + ... + 22875253.

It is an arithmetic number, because the mean of its divisors is an integer number (91500988).

Almost surely, 2^320253451 is an apocalyptic number.

320253451 is a deficient number, since it is larger than the sum of its proper divisors (45750501).

320253451 is an equidigital number, since it uses as much as digits as its factorization.

320253451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45750500.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 320253451 is about 17895.6265886389. The cubic root of 320253451 is about 684.1709123135.

The spelling of 320253451 in words is "three hundred twenty million, two hundred fifty-three thousand, four hundred fifty-one".