1457205623 has 6 divisors (see below), whose sum is σ = 1505729592. Its totient is φ = 1410198060.

The previous prime is 1457205619. The next prime is 1457205647. The reversal of 1457205623 is 3265027541.

It is not a de Polignac number, because 1457205623 - 2² = 1457205619 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 (1457205613) 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 5 ways as a sum of consecutive naturals, for example, 757211 + ... + 759132.

It is an arithmetic number, because the mean of its divisors is an integer number (250954932).

Almost surely, 2^1457205623 is an apocalyptic number.

1457205623 is a deficient number, since it is larger than the sum of its proper divisors (48523969).

1457205623 is an equidigital number, since it uses as much as digits as its factorization.

1457205623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1516405 (or 1516374 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 35.

The square root of 1457205623 is about 38173.3627415767. The cubic root of 1457205623 is about 1133.7229708052.

The spelling of 1457205623 in words is "one billion, four hundred fifty-seven million, two hundred five thousand, six hundred twenty-three".