2155113 has 16 divisors (see below), whose sum is σ = 3361600. Its totient is φ = 1360800.

The previous prime is 2155103. The next prime is 2155121. The reversal of 2155113 is 3115512.

It is a de Polignac number, because none of the positive numbers 2^k-2155113 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2155103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1588 + ... + 2613.

It is an arithmetic number, because the mean of its divisors is an integer number (210100).

2^2155113 is an apocalyptic number.

It is an amenable number.

2155113 is a deficient number, since it is larger than the sum of its proper divisors (1206487).

2155113 is a wasteful number, since it uses less digits than its factorization.

2155113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4229 (or 4223 counting only the distinct ones).

The product of its digits is 150, while the sum is 18.

The square root of 2155113 is about 1468.0303130385. The cubic root of 2155113 is about 129.1685196173.

The spelling of 2155113 in words is "two million, one hundred fifty-five thousand, one hundred thirteen".