57121169 has 8 divisors (see below), whose sum is σ = 65334720. Its totient is φ = 48920976.

The previous prime is 57121151. The next prime is 57121219. The reversal of 57121169 is 96112175.

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

It is a cyclic number.

It is not a de Polignac number, because 57121169 - 2¹⁶ = 57055633 is a prime.

It is a super-2 number, since 2×57121169² = 6525655895853122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57121469) 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, 8762 + ... + 13820.

It is an arithmetic number, because the mean of its divisors is an integer number (8166840).

Almost surely, 2^57121169 is an apocalyptic number.

It is an amenable number.

57121169 is a deficient number, since it is larger than the sum of its proper divisors (8213551).

57121169 is a wasteful number, since it uses less digits than its factorization.

57121169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6679.

The product of its digits is 3780, while the sum is 32.

The square root of 57121169 is about 7557.8547882319. The cubic root of 57121169 is about 385.1226213113.

It can be divided in two parts, 57121 and 169, that multiplied together give a square (9653449 = 3107²).

The spelling of 57121169 in words is "fifty-seven million, one hundred twenty-one thousand, one hundred sixty-nine".