268318531 has 16 divisors (see below), whose sum is σ = 307558944. Its totient is φ = 231888384.

The previous prime is 268318517. The next prime is 268318541. The reversal of 268318531 is 135813862.

It is not a de Polignac number, because 268318531 - 2⁷ = 268318403 is a prime.

It is a super-2 number, since 2×268318531² = 143989668155995922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (268318541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40456 + ... + 46618.

It is an arithmetic number, because the mean of its divisors is an integer number (19222434).

Almost surely, 2^268318531 is an apocalyptic number.

268318531 is a deficient number, since it is larger than the sum of its proper divisors (39240413).

268318531 is a wasteful number, since it uses less digits than its factorization.

268318531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6390.

The product of its digits is 34560, while the sum is 37.

The square root of 268318531 is about 16380.4313435269. The cubic root of 268318531 is about 644.9859027827.

The spelling of 268318531 in words is "two hundred sixty-eight million, three hundred eighteen thousand, five hundred thirty-one".