274902091 has 4 divisors (see below), whose sum is σ = 275338384. Its totient is φ = 274465800.

The previous prime is 274902077. The next prime is 274902097. The reversal of 274902091 is 190209472.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 274902091 - 2¹⁵ = 274869323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (274902097) 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, 217200 + ... + 218461.

It is an arithmetic number, because the mean of its divisors is an integer number (68834596).

Almost surely, 2^274902091 is an apocalyptic number.

274902091 is a deficient number, since it is larger than the sum of its proper divisors (436293).

274902091 is an equidigital number, since it uses as much as digits as its factorization.

274902091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436292.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 274902091 is about 16580.1716215484. The cubic root of 274902091 is about 650.2185387449.

The spelling of 274902091 in words is "two hundred seventy-four million, nine hundred two thousand, ninety-one".