2115123 has 16 divisors (see below), whose sum is σ = 3035520. Its totient is φ = 1305216.

The previous prime is 2115121. The next prime is 2115131. The reversal of 2115123 is 3215112.

It is not a de Polignac number, because 2115123 - 2¹ = 2115121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2115121) 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, 3108 + ... + 3726.

It is an arithmetic number, because the mean of its divisors is an integer number (189720).

2^2115123 is an apocalyptic number.

2115123 is a deficient number, since it is larger than the sum of its proper divisors (920397).

2115123 is a wasteful number, since it uses less digits than its factorization.

2115123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 706.

The product of its digits is 60, while the sum is 15.

The square root of 2115123 is about 1454.3462448812. The cubic root of 2115123 is about 128.3645815101.

The spelling of 2115123 in words is "two million, one hundred fifteen thousand, one hundred twenty-three".