1270400959 has 2 divisors, whose sum is σ = 1270400960. Its totient is φ = 1270400958.

The previous prime is 1270400953. The next prime is 1270400981. The reversal of 1270400959 is 9590040721.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1270400959 - 2²¹ = 1268303807 is a prime.

It is a super-2 number, since 2×1270400959² = 3227837193256239362, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1270400953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 635200479 + 635200480.

It is an arithmetic number, because the mean of its divisors is an integer number (635200480).

Almost surely, 2^1270400959 is an apocalyptic number.

1270400959 is a deficient number, since it is larger than the sum of its proper divisors (1).

1270400959 is an equidigital number, since it uses as much as digits as its factorization.

1270400959 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22680, while the sum is 37.

The square root of 1270400959 is about 35642.6845088863. The cubic root of 1270400959 is about 1083.0460870833.

The spelling of 1270400959 in words is "one billion, two hundred seventy million, four hundred thousand, nine hundred fifty-nine".