274991245 has 4 divisors (see below), whose sum is σ = 329989500. Its totient is φ = 219992992.

The previous prime is 274991231. The next prime is 274991251. The reversal of 274991245 is 542199472.

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 176703849 + 98287396 = 13293^2 + 9914^2 .

It is a cyclic number.

It is not a de Polignac number, because 274991245 - 2⁹ = 274990733 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27499120 + ... + 27499129.

It is an arithmetic number, because the mean of its divisors is an integer number (82497375).

Almost surely, 2^274991245 is an apocalyptic number.

It is an amenable number.

274991245 is a deficient number, since it is larger than the sum of its proper divisors (54998255).

274991245 is an equidigital number, since it uses as much as digits as its factorization.

274991245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54998254.

The product of its digits is 181440, while the sum is 43.

The square root of 274991245 is about 16582.8599764938. The cubic root of 274991245 is about 650.2888223354.

The spelling of 274991245 in words is "two hundred seventy-four million, nine hundred ninety-one thousand, two hundred forty-five".