1113913 has 8 divisors (see below), whose sum is σ = 1224000. Its totient is φ = 1009008.

The previous prime is 1113899. The next prime is 1113941. The reversal of 1113913 is 3193111.

It is a happy number.

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 1113913 - 2⁹ = 1113401 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

1113913 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1113953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 838 + ... + 1711.

It is an arithmetic number, because the mean of its divisors is an integer number (153000).

2^1113913 is an apocalyptic number.

It is an amenable number.

1113913 is a deficient number, since it is larger than the sum of its proper divisors (110087).

1113913 is a wasteful number, since it uses less digits than its factorization.

1113913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2591.

The product of its digits is 81, while the sum is 19.

The square root of 1113913 is about 1055.4207691722. The cubic root of 1113913 is about 103.6614049891.

It can be divided in two parts, 11 and 13913, that added together give a square (13924 = 118²).

The spelling of 1113913 in words is "one million, one hundred thirteen thousand, nine hundred thirteen".