1457861138 has 16 divisors (see below), whose sum is σ = 2209856256. Its totient is φ = 721264320.

The previous prime is 1457861137. The next prime is 1457861159. The reversal of 1457861138 is 8311687541.

It is not an unprimeable number, because it can be changed into a prime (1457861137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137495 + ... + 147717.

It is an arithmetic number, because the mean of its divisors is an integer number (138116016).

Almost surely, 2^1457861138 is an apocalyptic number.

1457861138 is a deficient number, since it is larger than the sum of its proper divisors (751995118).

1457861138 is a wasteful number, since it uses less digits than its factorization.

1457861138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10969.

The product of its digits is 161280, while the sum is 44.

The square root of 1457861138 is about 38181.9478025938. The cubic root of 1457861138 is about 1133.8929447590.

The spelling of 1457861138 in words is "one billion, four hundred fifty-seven million, eight hundred sixty-one thousand, one hundred thirty-eight".