2115207 has 8 divisors (see below), whose sum is σ = 3133680. Its totient is φ = 1410120.

The previous prime is 2115203. The next prime is 2115221. The reversal of 2115207 is 7025112.

It is not a de Polignac number, because 2115207 - 2² = 2115203 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2115207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2115203) 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, 39144 + ... + 39197.

It is an arithmetic number, because the mean of its divisors is an integer number (391710).

2^2115207 is an apocalyptic number.

2115207 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

2115207 is a deficient number, since it is larger than the sum of its proper divisors (1018473).

2115207 is an equidigital number, since it uses as much as digits as its factorization.

2115207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78350 (or 78344 counting only the distinct ones).

The product of its (nonzero) digits is 140, while the sum is 18.

The square root of 2115207 is about 1454.3751235496. The cubic root of 2115207 is about 128.3662807780.

The spelling of 2115207 in words is "two million, one hundred fifteen thousand, two hundred seven".