57144365 has 8 divisors (see below), whose sum is σ = 70246008. Its totient is φ = 44600320.

The previous prime is 57144359. The next prime is 57144371. The reversal of 57144365 is 56344175.

It is an interprime number because it is at equal distance from previous prime (57144359) and next prime (57144371).

It can be written as a sum of positive squares in 4 ways, for example, as 7540516 + 49603849 = 2746^2 + 7043^2 .

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

It is not a de Polignac number, because 57144365 - 2¹² = 57140269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139172 + ... + 139581.

It is an arithmetic number, because the mean of its divisors is an integer number (8780751).

Almost surely, 2^57144365 is an apocalyptic number.

It is an amenable number.

57144365 is a deficient number, since it is larger than the sum of its proper divisors (13101643).

57144365 is a wasteful number, since it uses less digits than its factorization.

57144365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278799.

The product of its digits is 50400, while the sum is 35.

The square root of 57144365 is about 7559.3891949019. The cubic root of 57144365 is about 385.1747449841.

The spelling of 57144365 in words is "fifty-seven million, one hundred forty-four thousand, three hundred sixty-five".