1274730261 has 32 divisors (see below), whose sum is σ = 2123071488. Its totient is φ = 663448320.

The previous prime is 1274730251. The next prime is 1274730277. The reversal of 1274730261 is 1620374721.

It is not a de Polignac number, because 1274730261 - 2⁷ = 1274730133 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1274730251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46525 + ... + 68658.

It is an arithmetic number, because the mean of its divisors is an integer number (66345984).

Almost surely, 2^1274730261 is an apocalyptic number.

It is an amenable number.

1274730261 is a deficient number, since it is larger than the sum of its proper divisors (848341227).

1274730261 is a wasteful number, since it uses less digits than its factorization.

1274730261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115241.

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 1274730261 is about 35703.3648414264. The cubic root of 1274730261 is about 1084.2749687682.

The spelling of 1274730261 in words is "one billion, two hundred seventy-four million, seven hundred thirty thousand, two hundred sixty-one".