1260571667 has 2 divisors, whose sum is σ = 1260571668. Its totient is φ = 1260571666.

The previous prime is 1260571621. The next prime is 1260571687. The reversal of 1260571667 is 7661750621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1260571667 - 2²² = 1256377363 is a prime.

It is not a weakly prime, because it can be changed into another prime (1260571687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 630285833 + 630285834.

It is an arithmetic number, because the mean of its divisors is an integer number (630285834).

Almost surely, 2^1260571667 is an apocalyptic number.

1260571667 is a deficient number, since it is larger than the sum of its proper divisors (1).

1260571667 is an equidigital number, since it uses as much as digits as its factorization.

1260571667 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 105840, while the sum is 41.

The square root of 1260571667 is about 35504.5302320704. The cubic root of 1260571667 is about 1080.2456194329.

The spelling of 1260571667 in words is "one billion, two hundred sixty million, five hundred seventy-one thousand, six hundred sixty-seven".