257086034 has 4 divisors (see below), whose sum is σ = 385629054. Its totient is φ = 128543016.

The previous prime is 257086033. The next prime is 257086051. The reversal of 257086034 is 430680752.

It is a happy number.

257086034 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 256096009 + 990025 = 16003^2 + 995^2 .

It is a junction number, because it is equal to n+sod(n) for n = 257085985 and 257086003.

It is not an unprimeable number, because it can be changed into a prime (257086033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64271507 + ... + 64271510.

Almost surely, 2^257086034 is an apocalyptic number.

257086034 is a deficient number, since it is larger than the sum of its proper divisors (128543020).

257086034 is a wasteful number, since it uses less digits than its factorization.

257086034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128543019.

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 257086034 is about 16033.9026440851. The cubic root of 257086034 is about 635.8570558726.

The spelling of 257086034 in words is "two hundred fifty-seven million, eighty-six thousand, thirty-four".