257151315 has 8 divisors (see below), whose sum is σ = 411442128. Its totient is φ = 137147360.

The previous prime is 257151313. The next prime is 257151317. The reversal of 257151315 is 513151752.

It is an interprime number because it is at equal distance from previous prime (257151313) and next prime (257151317).

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

It is not a de Polignac number, because 257151315 - 2¹ = 257151313 is a prime.

It is a super-2 number, since 2×257151315² = 132253597612458450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (257151313) 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, 8571696 + ... + 8571725.

It is an arithmetic number, because the mean of its divisors is an integer number (51430266).

Almost surely, 2^257151315 is an apocalyptic number.

257151315 is a deficient number, since it is larger than the sum of its proper divisors (154290813).

257151315 is a wasteful number, since it uses less digits than its factorization.

257151315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17143429.

The product of its digits is 5250, while the sum is 30.

The square root of 257151315 is about 16035.9382326074. The cubic root of 257151315 is about 635.9108716723.

The spelling of 257151315 in words is "two hundred fifty-seven million, one hundred fifty-one thousand, three hundred fifteen".