274072091 has 4 divisors (see below), whose sum is σ = 275603400. Its totient is φ = 272540784.

The previous prime is 274072081. The next prime is 274072103. The reversal of 274072091 is 190270472.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-274072091 is a prime.

It is a super-2 number, since 2×274072091² = 150231022130224562, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (274072031) 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, 765386 + ... + 765743.

It is an arithmetic number, because the mean of its divisors is an integer number (68900850).

Almost surely, 2^274072091 is an apocalyptic number.

274072091 is a deficient number, since it is larger than the sum of its proper divisors (1531309).

274072091 is a wasteful number, since it uses less digits than its factorization.

274072091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1531308.

The product of its (nonzero) digits is 7056, while the sum is 32.

The square root of 274072091 is about 16555.1228023232. The cubic root of 274072091 is about 649.5634868030.

The spelling of 274072091 in words is "two hundred seventy-four million, seventy-two thousand, ninety-one".