268981145 has 8 divisors (see below), whose sum is σ = 323123904. Its totient is φ = 214953904.

The previous prime is 268981099. The next prime is 268981169. The reversal of 268981145 is 541189862.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 268981145 - 2¹⁸ = 268719001 is a prime.

It is a super-2 number, since 2×268981145² = 144701712731022050, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 268981096 and 268981105.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23669 + ... + 33138.

It is an arithmetic number, because the mean of its divisors is an integer number (40390488).

Almost surely, 2^268981145 is an apocalyptic number.

It is an amenable number.

268981145 is a deficient number, since it is larger than the sum of its proper divisors (54142759).

268981145 is an equidigital number, since it uses as much as digits as its factorization.

268981145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57759.

The product of its digits is 138240, while the sum is 44.

The square root of 268981145 is about 16400.6446519641. The cubic root of 268981145 is about 645.5163983424.

The spelling of 268981145 in words is "two hundred sixty-eight million, nine hundred eighty-one thousand, one hundred forty-five".