274090085 has 4 divisors (see below), whose sum is σ = 328908108. Its totient is φ = 219272064.

The previous prime is 274090081. The next prime is 274090093. The reversal of 274090085 is 580090472.

It is a happy number.

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 192404641 + 81685444 = 13871^2 + 9038^2 .

It is a cyclic number.

It is not a de Polignac number, because 274090085 - 2² = 274090081 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (274090081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27409004 + ... + 27409013.

It is an arithmetic number, because the mean of its divisors is an integer number (82227027).

Almost surely, 2^274090085 is an apocalyptic number.

It is an amenable number.

274090085 is a deficient number, since it is larger than the sum of its proper divisors (54818023).

274090085 is an equidigital number, since it uses as much as digits as its factorization.

274090085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54818022.

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 274090085 is about 16555.6662505621. Note that the first 3 decimals coincide. The cubic root of 274090085 is about 649.5777020284.

The spelling of 274090085 in words is "two hundred seventy-four million, ninety thousand, eighty-five".