274356149 has 4 divisors (see below), whose sum is σ = 290494764. Its totient is φ = 258217536.

The previous prime is 274356139. The next prime is 274356151. The reversal of 274356149 is 941653472.

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 130188100 + 144168049 = 11410^2 + 12007^2 .

It is a cyclic number.

It is not a de Polignac number, because 274356149 - 2¹² = 274352053 is a prime.

It is a super-2 number, since 2×274356149² = 150542592988220402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (274356139) 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, 8069282 + ... + 8069315.

It is an arithmetic number, because the mean of its divisors is an integer number (72623691).

Almost surely, 2^274356149 is an apocalyptic number.

It is an amenable number.

274356149 is a deficient number, since it is larger than the sum of its proper divisors (16138615).

274356149 is a wasteful number, since it uses less digits than its factorization.

274356149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16138614.

The product of its digits is 181440, while the sum is 41.

The square root of 274356149 is about 16563.6997376794. The cubic root of 274356149 is about 649.7878195025.

The spelling of 274356149 in words is "two hundred seventy-four million, three hundred fifty-six thousand, one hundred forty-nine".