1457985609 has 16 divisors (see below), whose sum is σ = 2172052800. Its totient is φ = 966557088.

The previous prime is 1457985587. The next prime is 1457985667. The reversal of 1457985609 is 9065897541.

1457985609 is a `hidden beast` number, since 1 + 4 + 5 + 79 + 8 + 560 + 9 = 666.

It is not a de Polignac number, because 1457985609 - 2¹² = 1457981513 is a prime.

It is a super-2 number, since 2×1457985609² = 4251444072102201762, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1457985689) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 146004 + ... + 155669.

It is an arithmetic number, because the mean of its divisors is an integer number (135753300).

Almost surely, 2^1457985609 is an apocalyptic number.

It is an amenable number.

1457985609 is a deficient number, since it is larger than the sum of its proper divisors (714067191).

1457985609 is a wasteful number, since it uses less digits than its factorization.

1457985609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301861 (or 301855 counting only the distinct ones).

The product of its (nonzero) digits is 2721600, while the sum is 54.

The square root of 1457985609 is about 38183.5777396514. The cubic root of 1457985609 is about 1133.9252141269.

The spelling of 1457985609 in words is "one billion, four hundred fifty-seven million, nine hundred eighty-five thousand, six hundred nine".