57140069 has 8 divisors (see below), whose sum is σ = 65376768. Its totient is φ = 48921840.

The previous prime is 57140059. The next prime is 57140107. The reversal of 57140069 is 96004175.

It is a happy number.

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-57140069 is a prime.

It is a super-2 number, since 2×57140069² = 6529974970649522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57140029) 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, 2819 + ... + 11055.

It is an arithmetic number, because the mean of its divisors is an integer number (8172096).

Almost surely, 2^57140069 is an apocalyptic number.

It is an amenable number.

57140069 is a deficient number, since it is larger than the sum of its proper divisors (8236699).

57140069 is an equidigital number, since it uses as much as digits as its factorization.

57140069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9235.

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 57140069 is about 7559.1050396194. The cubic root of 57140069 is about 385.1650925178.

The spelling of 57140069 in words is "fifty-seven million, one hundred forty thousand, sixty-nine".