456894181 has 2 divisors, whose sum is σ = 456894182. Its totient is φ = 456894180.

The previous prime is 456894077. The next prime is 456894203. The reversal of 456894181 is 181498654.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 360658081 + 96236100 = 18991^2 + 9810^2 .

It is a cyclic number.

It is not a de Polignac number, because 456894181 - 2¹⁵ = 456861413 is a prime.

It is a super-2 number, since 2×456894181² = 417504585263321522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (456894281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 228447090 + 228447091.

It is an arithmetic number, because the mean of its divisors is an integer number (228447091).

Almost surely, 2^456894181 is an apocalyptic number.

It is an amenable number.

456894181 is a deficient number, since it is larger than the sum of its proper divisors (1).

456894181 is an equidigital number, since it uses as much as digits as its factorization.

456894181 is an evil number, because the sum of its binary digits is even.

The product of its digits is 276480, while the sum is 46.

The square root of 456894181 is about 21375.0831811247. The cubic root of 456894181 is about 770.2030054499.

The spelling of 456894181 in words is "four hundred fifty-six million, eight hundred ninety-four thousand, one hundred eighty-one".