1274940349 has 2 divisors, whose sum is σ = 1274940350. Its totient is φ = 1274940348.

The previous prime is 1274940343. The next prime is 1274940353. The reversal of 1274940349 is 9430494721.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1212293124 + 62647225 = 34818^2 + 7915^2 .

It is a cyclic number.

It is not a de Polignac number, because 1274940349 - 2²¹ = 1272843197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1274940343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 637470174 + 637470175.

It is an arithmetic number, because the mean of its divisors is an integer number (637470175).

Almost surely, 2^1274940349 is an apocalyptic number.

It is an amenable number.

1274940349 is a deficient number, since it is larger than the sum of its proper divisors (1).

1274940349 is an equidigital number, since it uses as much as digits as its factorization.

1274940349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 217728, while the sum is 43.

The square root of 1274940349 is about 35706.3068518714. The cubic root of 1274940349 is about 1084.3345318652.

The spelling of 1274940349 in words is "one billion, two hundred seventy-four million, nine hundred forty thousand, three hundred forty-nine".