456113781 has 16 divisors (see below), whose sum is σ = 677476800. Its totient is φ = 303287184.

The previous prime is 456113773. The next prime is 456113783. The reversal of 456113781 is 187311654.

456113781 is a `hidden beast` number, since 4 + 5 + 611 + 37 + 8 + 1 = 666.

It is not a de Polignac number, because 456113781 - 2³ = 456113773 is a prime.

It is a super-2 number, since 2×456113781² = 416079562436231922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (456113783) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11211 + ... + 32216.

It is an arithmetic number, because the mean of its divisors is an integer number (42342300).

Almost surely, 2^456113781 is an apocalyptic number.

It is an amenable number.

456113781 is a deficient number, since it is larger than the sum of its proper divisors (221363019).

456113781 is a wasteful number, since it uses less digits than its factorization.

456113781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43825 (or 43819 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 456113781 is about 21356.8204796501. The cubic root of 456113781 is about 769.7642393974.

The spelling of 456113781 in words is "four hundred fifty-six million, one hundred thirteen thousand, seven hundred eighty-one".