1138117613 has 4 divisors (see below), whose sum is σ = 1198018560. Its totient is φ = 1078216668.

The previous prime is 1138117609. The next prime is 1138117619. The reversal of 1138117613 is 3167118311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1138117613 - 2² = 1138117609 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1138117613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1138117619) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29950445 + ... + 29950482.

It is an arithmetic number, because the mean of its divisors is an integer number (299504640).

Almost surely, 2^1138117613 is an apocalyptic number.

It is an amenable number.

1138117613 is a deficient number, since it is larger than the sum of its proper divisors (59900947).

1138117613 is an equidigital number, since it uses as much as digits as its factorization.

1138117613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59900946.

The product of its digits is 3024, while the sum is 32.

The square root of 1138117613 is about 33735.9987698601. The cubic root of 1138117613 is about 1044.0686322398.

The spelling of 1138117613 in words is "one billion, one hundred thirty-eight million, one hundred seventeen thousand, six hundred thirteen".