1270764257 has 16 divisors (see below), whose sum is σ = 1466110464. Its totient is φ = 1078920000.

The previous prime is 1270764241. The next prime is 1270764259. The reversal of 1270764257 is 7524670721.

It is a cyclic number.

It is not a de Polignac number, because 1270764257 - 2⁴ = 1270764241 is a prime.

It is a super-2 number, since 2×1270764257² = 3229683593737524098, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1270764259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 341507 + ... + 345207.

It is an arithmetic number, because the mean of its divisors is an integer number (91631904).

Almost surely, 2^1270764257 is an apocalyptic number.

It is an amenable number.

1270764257 is a deficient number, since it is larger than the sum of its proper divisors (195346207).

1270764257 is a wasteful number, since it uses less digits than its factorization.

1270764257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4160.

The product of its (nonzero) digits is 164640, while the sum is 41.

The square root of 1270764257 is about 35647.7805339968. The cubic root of 1270764257 is about 1083.1493172153.

The spelling of 1270764257 in words is "one billion, two hundred seventy million, seven hundred sixty-four thousand, two hundred fifty-seven".