268149841 has 4 divisors (see below), whose sum is σ = 275397172. Its totient is φ = 260902512.

The previous prime is 268149829. The next prime is 268149859. The reversal of 268149841 is 148941862.

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 240901441 + 27248400 = 15521^2 + 5220^2 .

It is a cyclic number.

It is not a de Polignac number, because 268149841 - 2⁵ = 268149809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (268149821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3623610 + ... + 3623683.

It is an arithmetic number, because the mean of its divisors is an integer number (68849293).

Almost surely, 2^268149841 is an apocalyptic number.

It is an amenable number.

268149841 is a deficient number, since it is larger than the sum of its proper divisors (7247331).

268149841 is an equidigital number, since it uses as much as digits as its factorization.

268149841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7247330.

The product of its digits is 110592, while the sum is 43.

The square root of 268149841 is about 16375.2814021622. The cubic root of 268149841 is about 644.8507083918.

The spelling of 268149841 in words is "two hundred sixty-eight million, one hundred forty-nine thousand, eight hundred forty-one".