2115099 has 48 divisors (see below), whose sum is σ = 3901440. Its totient is φ = 1108080.

The previous prime is 2115097. The next prime is 2115101. The reversal of 2115099 is 9905112.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2115097) and next prime (2115101).

It is not a de Polignac number, because 2115099 - 2¹ = 2115097 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2115097) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 68214 + ... + 68244.

It is an arithmetic number, because the mean of its divisors is an integer number (81280).

2^2115099 is an apocalyptic number.

2115099 is a deficient number, since it is larger than the sum of its proper divisors (1786341).

2115099 is a wasteful number, since it uses less digits than its factorization.

2115099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85 (or 60 counting only the distinct ones).

The product of its (nonzero) digits is 810, while the sum is 27.

The square root of 2115099 is about 1454.3379937277. The cubic root of 2115099 is about 128.3640959967.

The spelling of 2115099 in words is "two million, one hundred fifteen thousand, ninety-nine".