268365157 has 4 divisors (see below), whose sum is σ = 268947756. Its totient is φ = 267782560.

The previous prime is 268365151. The next prime is 268365191. The reversal of 268365157 is 751563862.

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

It can be written as a sum of positive squares in 2 ways, for example, as 38266596 + 230098561 = 6186^2 + 15169^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-268365157 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268365151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 290608 + ... + 291529.

It is an arithmetic number, because the mean of its divisors is an integer number (67236939).

Almost surely, 2^268365157 is an apocalyptic number.

It is an amenable number.

268365157 is a deficient number, since it is larger than the sum of its proper divisors (582599).

268365157 is an equidigital number, since it uses as much as digits as its factorization.

268365157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 582598.

The product of its digits is 302400, while the sum is 43.

The square root of 268365157 is about 16381.8545042983. The cubic root of 268365157 is about 645.0232605837.

The spelling of 268365157 in words is "two hundred sixty-eight million, three hundred sixty-five thousand, one hundred fifty-seven".