451313161 has 32 divisors (see below), whose sum is σ = 534915360. Its totient is φ = 376897536.

The previous prime is 451313141. The next prime is 451313171. The reversal of 451313161 is 161313154.

It can be written as a sum of positive squares in 16 ways, for example, as 75690000 + 375623161 = 8700^2 + 19381^2 .

It is a cyclic number.

It is not a de Polignac number, because 451313161 - 2¹⁵ = 451280393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (451313101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 792885 + ... + 793453.

It is an arithmetic number, because the mean of its divisors is an integer number (16716105).

Almost surely, 2^451313161 is an apocalyptic number.

It is an amenable number.

451313161 is a deficient number, since it is larger than the sum of its proper divisors (83602199).

451313161 is a wasteful number, since it uses less digits than its factorization.

451313161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 733.

The product of its digits is 1080, while the sum is 25.

The square root of 451313161 is about 21244.1323899095. The cubic root of 451313161 is about 767.0541067761.

The spelling of 451313161 in words is "four hundred fifty-one million, three hundred thirteen thousand, one hundred sixty-one".