274909949 has 2 divisors, whose sum is σ = 274909950. Its totient is φ = 274909948.

The previous prime is 274909927. The next prime is 274909979. The reversal of 274909949 is 949909472.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 269550724 + 5359225 = 16418^2 + 2315^2 .

It is a cyclic number.

It is not a de Polignac number, because 274909949 - 2¹⁶ = 274844413 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 274909949.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (274909979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137454974 + 137454975.

It is an arithmetic number, because the mean of its divisors is an integer number (137454975).

Almost surely, 2^274909949 is an apocalyptic number.

It is an amenable number.

274909949 is a deficient number, since it is larger than the sum of its proper divisors (1).

274909949 is an equidigital number, since it uses as much as digits as its factorization.

274909949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1469664, while the sum is 53.

The square root of 274909949 is about 16580.4085896579. The cubic root of 274909949 is about 650.2247341247.

The spelling of 274909949 in words is "two hundred seventy-four million, nine hundred nine thousand, nine hundred forty-nine".