2113907 has 4 divisors (see below), whose sum is σ = 2205840. Its totient is φ = 2021976.

The previous prime is 2113901. The next prime is 2113913. The reversal of 2113907 is 7093112.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (2113901) and next prime (2113913).

It is not a de Polignac number, because 2113907 - 2⁶ = 2113843 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 91909 = 2113907 / (2 + 1 + 1 + 3 + 9 + 0 + 7).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2113901) 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, 45932 + ... + 45977.

It is an arithmetic number, because the mean of its divisors is an integer number (551460).

2^2113907 is an apocalyptic number.

2113907 is a deficient number, since it is larger than the sum of its proper divisors (91933).

2113907 is an equidigital number, since it uses as much as digits as its factorization.

2113907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91932.

The product of its (nonzero) digits is 378, while the sum is 23.

The square root of 2113907 is about 1453.9281275221. The cubic root of 2113907 is about 128.3399775425.

The spelling of 2113907 in words is "two million, one hundred thirteen thousand, nine hundred seven".