1117125513 has 40 divisors (see below), whose sum is σ = 1938516800. Its totient is φ = 627873120.

The previous prime is 1117125511. The next prime is 1117125533. The reversal of 1117125513 is 3155217111.

1117125513 is a `hidden beast` number, since 11 + 17 + 125 + 513 = 666.

It is not a de Polignac number, because 1117125513 - 2¹ = 1117125511 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1117125511) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 18438 + ... + 50736.

It is an arithmetic number, because the mean of its divisors is an integer number (48462920).

Almost surely, 2^1117125513 is an apocalyptic number.

It is an amenable number.

1117125513 is a deficient number, since it is larger than the sum of its proper divisors (821391287).

1117125513 is an equidigital number, since it uses as much as digits as its factorization.

1117125513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32379 (or 32370 counting only the distinct ones).

The product of its digits is 1050, while the sum is 27.

The square root of 1117125513 is about 33423.4276069945. The cubic root of 1117125513 is about 1037.6096213198.

The spelling of 1117125513 in words is "one billion, one hundred seventeen million, one hundred twenty-five thousand, five hundred thirteen".