1260991367 has 8 divisors (see below), whose sum is σ = 1305068352. Its totient is φ = 1217548800.

The previous prime is 1260991357. The next prime is 1260991387. The reversal of 1260991367 is 7631990621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1260991367 - 2⁸ = 1260991111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1260991327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154559 + ... + 162512.

It is an arithmetic number, because the mean of its divisors is an integer number (163133544).

Almost surely, 2^1260991367 is an apocalyptic number.

1260991367 is a deficient number, since it is larger than the sum of its proper divisors (44076985).

1260991367 is an equidigital number, since it uses as much as digits as its factorization.

1260991367 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317209.

The product of its (nonzero) digits is 122472, while the sum is 44.

The square root of 1260991367 is about 35510.4402535367. The cubic root of 1260991367 is about 1080.3654932941.

The spelling of 1260991367 in words is "one billion, two hundred sixty million, nine hundred ninety-one thousand, three hundred sixty-seven".