268131501 has 24 divisors (see below), whose sum is σ = 423184320. Its totient is φ = 162244800.

The previous prime is 268131491. The next prime is 268131533. The reversal of 268131501 is 105131862.

268131501 is a `hidden beast` number, since 26 + 8 + 131 + 501 = 666.

It is not a de Polignac number, because 268131501 - 2¹⁷ = 268000429 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268131581) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 73560 + ... + 77118.

It is an arithmetic number, because the mean of its divisors is an integer number (17632680).

Almost surely, 2^268131501 is an apocalyptic number.

It is an amenable number.

268131501 is a deficient number, since it is larger than the sum of its proper divisors (155052819).

268131501 is a wasteful number, since it uses less digits than its factorization.

268131501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4337 (or 4334 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 268131501 is about 16374.7214022102. The cubic root of 268131501 is about 644.8360066221.

It can be divided in two parts, 268 and 131501, that added together give a square (131769 = 363²).

The spelling of 268131501 in words is "two hundred sixty-eight million, one hundred thirty-one thousand, five hundred one".