57138910 has 8 divisors (see below), whose sum is σ = 102850056. Its totient is φ = 22855560.

The previous prime is 57138901. The next prime is 57138919. The reversal of 57138910 is 1983175.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (57138901) and next prime (57138919).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57138919) 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 3 ways as a sum of consecutive naturals, for example, 2856936 + ... + 2856955.

It is an arithmetic number, because the mean of its divisors is an integer number (12856257).

Almost surely, 2^57138910 is an apocalyptic number.

57138910 is a deficient number, since it is larger than the sum of its proper divisors (45711146).

57138910 is a wasteful number, since it uses less digits than its factorization.

57138910 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5713898.

The product of its (nonzero) digits is 7560, while the sum is 34.

The square root of 57138910 is about 7559.0283767162. The cubic root of 57138910 is about 385.1624883361.

The spelling of 57138910 in words is "fifty-seven million, one hundred thirty-eight thousand, nine hundred ten".