1456421023 has 4 divisors (see below), whose sum is σ = 1456520080. Its totient is φ = 1456321968.

The previous prime is 1456420967. The next prime is 1456421027. The reversal of 1456421023 is 3201246541.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1456421023 - 2¹⁷ = 1456289951 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1456420982 and 1456421000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1456421027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22590 + ... + 58507.

It is an arithmetic number, because the mean of its divisors is an integer number (364130020).

Almost surely, 2^1456421023 is an apocalyptic number.

1456421023 is a deficient number, since it is larger than the sum of its proper divisors (99057).

1456421023 is an equidigital number, since it uses as much as digits as its factorization.

1456421023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99056.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 1456421023 is about 38163.0845582482. The cubic root of 1456421023 is about 1133.5194582915.

Adding to 1456421023 its reverse (3201246541), we get a palindrome (4657667564).

The spelling of 1456421023 in words is "one billion, four hundred fifty-six million, four hundred twenty-one thousand, twenty-three".