257693122 has 8 divisors (see below), whose sum is σ = 392309136. Its totient is φ = 126923412.

The previous prime is 257693119. The next prime is 257693141. The reversal of 257693122 is 221396752.

257693122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×257693122² = 132811490252213768, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 961408 + ... + 961675.

It is an arithmetic number, because the mean of its divisors is an integer number (49038642).

Almost surely, 2^257693122 is an apocalyptic number.

257693122 is a deficient number, since it is larger than the sum of its proper divisors (134616014).

257693122 is a wasteful number, since it uses less digits than its factorization.

257693122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1923152.

The product of its digits is 45360, while the sum is 37.

The square root of 257693122 is about 16052.8228670225. The cubic root of 257693122 is about 636.3571708570.

The spelling of 257693122 in words is "two hundred fifty-seven million, six hundred ninety-three thousand, one hundred twenty-two".