268915541 has 4 divisors (see below), whose sum is σ = 269309952. Its totient is φ = 268521132.

The previous prime is 268915499. The next prime is 268915573. The reversal of 268915541 is 145519862.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-268915541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268915841) 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, 196181 + ... + 197546.

It is an arithmetic number, because the mean of its divisors is an integer number (67327488).

Almost surely, 2^268915541 is an apocalyptic number.

It is an amenable number.

268915541 is a deficient number, since it is larger than the sum of its proper divisors (394411).

268915541 is an equidigital number, since it uses as much as digits as its factorization.

268915541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394410.

The product of its digits is 86400, while the sum is 41.

The square root of 268915541 is about 16398.6444866641. The cubic root of 268915541 is about 645.4639139930.

The spelling of 268915541 in words is "two hundred sixty-eight million, nine hundred fifteen thousand, five hundred forty-one".