57141140 has 48 divisors (see below), whose sum is σ = 139407744. Its totient is φ = 19267200.

The previous prime is 57141137. The next prime is 57141173. The reversal of 57141140 is 4114175.

It is a happy number.

It is a super-4 number, since 4×57141140⁴ (a number of 32 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5195 + ... + 11885.

It is an arithmetic number, because the mean of its divisors is an integer number (2904328).

Almost surely, 2^57141140 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57141140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69703872).

57141140 is an abundant number, since it is smaller than the sum of its proper divisors (82266604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57141140 is a wasteful number, since it uses less digits than its factorization.

57141140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6768 (or 6766 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 23.

The square root of 57141140 is about 7559.1758810071. The cubic root of 57141140 is about 385.1674989391.

The spelling of 57141140 in words is "fifty-seven million, one hundred forty-one thousand, one hundred forty".