1457216023 has 4 divisors (see below), whose sum is σ = 1463750848. Its totient is φ = 1450681200.

The previous prime is 1457215993. The next prime is 1457216063. The reversal of 1457216023 is 3206127541.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1457216023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1457216063) 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, 3267078 + ... + 3267523.

It is an arithmetic number, because the mean of its divisors is an integer number (365937712).

Almost surely, 2^1457216023 is an apocalyptic number.

1457216023 is a deficient number, since it is larger than the sum of its proper divisors (6534825).

1457216023 is an equidigital number, since it uses as much as digits as its factorization.

1457216023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6534824.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 1457216023 is about 38173.4989619762. The cubic root of 1457216023 is about 1133.7256679058.

The spelling of 1457216023 in words is "one billion, four hundred fifty-seven million, two hundred sixteen thousand, twenty-three".