57135747 has 8 divisors (see below), whose sum is σ = 76236544. Its totient is φ = 38062728.

The previous prime is 57135737. The next prime is 57135773. The reversal of 57135747 is 74753175.

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

It is not a de Polignac number, because 57135747 - 2⁴ = 57135731 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57135737) 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, 1543 + ... + 10800.

It is an arithmetic number, because the mean of its divisors is an integer number (9529568).

Almost surely, 2^57135747 is an apocalyptic number.

57135747 is a deficient number, since it is larger than the sum of its proper divisors (19100797).

57135747 is a wasteful number, since it uses less digits than its factorization.

57135747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13889.

The product of its digits is 102900, while the sum is 39.

The square root of 57135747 is about 7558.8191538097. The cubic root of 57135747 is about 385.1553811452.

The spelling of 57135747 in words is "fifty-seven million, one hundred thirty-five thousand, seven hundred forty-seven".