1457210865 has 48 divisors (see below), whose sum is σ = 2572726464. Its totient is φ = 703781760.

The previous prime is 1457210819. The next prime is 1457210873. The reversal of 1457210865 is 5680127541.

It is not a de Polignac number, because 1457210865 - 2⁶ = 1457210801 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 512227 + ... + 515063.

It is an arithmetic number, because the mean of its divisors is an integer number (53598468).

Almost surely, 2^1457210865 is an apocalyptic number.

1457210865 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1457210865 is a deficient number, since it is larger than the sum of its proper divisors (1115515599).

1457210865 is a wasteful number, since it uses less digits than its factorization.

1457210865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3150 (or 3139 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 39.

The square root of 1457210865 is about 38173.4314019581. The cubic root of 1457210865 is about 1133.7243302492.

The spelling of 1457210865 in words is "one billion, four hundred fifty-seven million, two hundred ten thousand, eight hundred sixty-five".