2102919 has 16 divisors (see below), whose sum is σ = 3451392. Its totient is φ = 1109088.

The previous prime is 2102897. The next prime is 2102927. The reversal of 2102919 is 9192012.

It is not a de Polignac number, because 2102919 - 2⁵ = 2102887 is a prime.

It is a super-2 number, since 2×2102919² = 8844536641122, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102999) 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, 3579 + ... + 4124.

It is an arithmetic number, because the mean of its divisors is an integer number (215712).

2^2102919 is an apocalyptic number.

2102919 is a deficient number, since it is larger than the sum of its proper divisors (1348473).

2102919 is a wasteful number, since it uses less digits than its factorization.

2102919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7726.

The product of its (nonzero) digits is 324, while the sum is 24.

The square root of 2102919 is about 1450.1444755610. The cubic root of 2102919 is about 128.1172225301.

The spelling of 2102919 in words is "two million, one hundred two thousand, nine hundred nineteen".