456123431 has 4 divisors (see below), whose sum is σ = 456686664. Its totient is φ = 455560200.

The previous prime is 456123407. The next prime is 456123433. The reversal of 456123431 is 134321654.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 134321654 = 2 ⋅67160827.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-456123431 is a prime.

It is a super-2 number, since 2×456123431² = 416097168614423522, 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 = 456123394 and 456123403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (456123433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 280400 + ... + 282021.

It is an arithmetic number, because the mean of its divisors is an integer number (114171666).

Almost surely, 2^456123431 is an apocalyptic number.

456123431 is a deficient number, since it is larger than the sum of its proper divisors (563233).

456123431 is an equidigital number, since it uses as much as digits as its factorization.

456123431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 563232.

The product of its digits is 8640, while the sum is 29.

The square root of 456123431 is about 21357.0464015978. The cubic root of 456123431 is about 769.7696679936.

The spelling of 456123431 in words is "four hundred fifty-six million, one hundred twenty-three thousand, four hundred thirty-one".