57261149 has 8 divisors (see below), whose sum is σ = 62707392. Its totient is φ = 51855040.

The previous prime is 57261143. The next prime is 57261161. The reversal of 57261149 is 94116275.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57261149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57261143) 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, 7004 + ... + 12789.

It is an arithmetic number, because the mean of its divisors is an integer number (7838424).

Almost surely, 2^57261149 is an apocalyptic number.

It is an amenable number.

57261149 is a deficient number, since it is larger than the sum of its proper divisors (5446243).

57261149 is a wasteful number, since it uses less digits than its factorization.

57261149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20067.

The product of its digits is 15120, while the sum is 35.

The square root of 57261149 is about 7567.1096860030. The cubic root of 57261149 is about 385.4369559607.

The spelling of 57261149 in words is "fifty-seven million, two hundred sixty-one thousand, one hundred forty-nine".