456225181 has 4 divisors (see below), whose sum is σ = 460742364. Its totient is φ = 451708000.

The previous prime is 456225179. The next prime is 456225191. The reversal of 456225181 is 181522654.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 271129156 + 185096025 = 16466^2 + 13605^2 .

It is a cyclic number.

It is not a de Polignac number, because 456225181 - 2¹ = 456225179 is a prime.

It is a super-2 number, since 2×456225181² = 416282831556965522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (456225191) 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, 2258440 + ... + 2258641.

It is an arithmetic number, because the mean of its divisors is an integer number (115185591).

Almost surely, 2^456225181 is an apocalyptic number.

It is an amenable number.

456225181 is a deficient number, since it is larger than the sum of its proper divisors (4517183).

456225181 is a wasteful number, since it uses less digits than its factorization.

456225181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4517182.

The product of its digits is 19200, while the sum is 34.

The square root of 456225181 is about 21359.4283865463. The cubic root of 456225181 is about 769.8269026769.

It can be divided in two parts, 45 and 6225181, that added together give a palindrome (6225226).

The spelling of 456225181 in words is "four hundred fifty-six million, two hundred twenty-five thousand, one hundred eighty-one".