1260117999 has 16 divisors (see below), whose sum is σ = 2133533440. Its totient is φ = 720067320.

The previous prime is 1260117973. The next prime is 1260118049. The reversal of 1260117999 is 9997110621.

It is not a de Polignac number, because 1260117999 - 2⁷ = 1260117871 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 (1260117959) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3333457 + ... + 3333834.

It is an arithmetic number, because the mean of its divisors is an integer number (133345840).

Almost surely, 2^1260117999 is an apocalyptic number.

1260117999 is a deficient number, since it is larger than the sum of its proper divisors (873415441).

1260117999 is an equidigital number, since it uses as much as digits as its factorization.

1260117999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6667307 (or 6667301 counting only the distinct ones).

The product of its (nonzero) digits is 61236, while the sum is 45.

The square root of 1260117999 is about 35498.1407823001. The cubic root of 1260117999 is about 1080.1160137719.

The spelling of 1260117999 in words is "one billion, two hundred sixty million, one hundred seventeen thousand, nine hundred ninety-nine".