1263379117 has 32 divisors (see below), whose sum is σ = 1703649024. Its totient is φ = 904780800.

The previous prime is 1263379111. The next prime is 1263379147. The reversal of 1263379117 is 7119733621.

It is not a de Polignac number, because 1263379117 - 2¹⁵ = 1263346349 is a prime.

It is a super-2 number, since 2×1263379117² = 3192253586543399378, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1263379117.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1263379111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 238623 + ... + 243859.

It is an arithmetic number, because the mean of its divisors is an integer number (53239032).

Almost surely, 2^1263379117 is an apocalyptic number.

It is an amenable number.

1263379117 is a deficient number, since it is larger than the sum of its proper divisors (440269907).

1263379117 is a wasteful number, since it uses less digits than its factorization.

1263379117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5509.

The product of its digits is 47628, while the sum is 40.

The square root of 1263379117 is about 35544.0447473272. The cubic root of 1263379117 is about 1081.0469719723.

The spelling of 1263379117 in words is "one billion, two hundred sixty-three million, three hundred seventy-nine thousand, one hundred seventeen".