455661431 has 4 divisors (see below), whose sum is σ = 455725392. Its totient is φ = 455597472.

The previous prime is 455661419. The next prime is 455661443. The reversal of 455661431 is 134166554.

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

It is an interprime number because it is at equal distance from previous prime (455661419) and next prime (455661443).

It is a cyclic number.

It is not a de Polignac number, because 455661431 - 2¹⁰ = 455660407 is a prime.

It is a super-2 number, since 2×455661431² = 415254679401935522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 455661391 and 455661400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (455661131) 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, 19730 + ... + 36063.

It is an arithmetic number, because the mean of its divisors is an integer number (113931348).

Almost surely, 2^455661431 is an apocalyptic number.

455661431 is a deficient number, since it is larger than the sum of its proper divisors (63961).

455661431 is an equidigital number, since it uses as much as digits as its factorization.

455661431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63960.

The product of its digits is 43200, while the sum is 35.

The square root of 455661431 is about 21346.2275589857. The cubic root of 455661431 is about 769.5096844731.

The spelling of 455661431 in words is "four hundred fifty-five million, six hundred sixty-one thousand, four hundred thirty-one".