1113651913 has 8 divisors (see below), whose sum is σ = 1221607296. Its totient is φ = 1006815600.

The previous prime is 1113651911. The next prime is 1113651923. The reversal of 1113651913 is 3191563111.

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 1113651913 - 2¹ = 1113651911 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1113651911) 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, 277681 + ... + 281662.

It is an arithmetic number, because the mean of its divisors is an integer number (152700912).

Almost surely, 2^1113651913 is an apocalyptic number.

It is an amenable number.

1113651913 is a deficient number, since it is larger than the sum of its proper divisors (107955383).

1113651913 is a wasteful number, since it uses less digits than its factorization.

1113651913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 559535.

The product of its digits is 2430, while the sum is 31.

The square root of 1113651913 is about 33371.4235986420. The cubic root of 1113651913 is about 1036.5330538582.

The spelling of 1113651913 in words is "one billion, one hundred thirteen million, six hundred fifty-one thousand, nine hundred thirteen".