2123925 has 12 divisors (see below), whose sum is σ = 3511680. Its totient is φ = 1132720.

The previous prime is 2123917. The next prime is 2123939. The reversal of 2123925 is 5293212.

It is not a de Polignac number, because 2123925 - 2³ = 2123917 is a prime.

It is a super-2 number, since 2×2123925² = 9022114811250, which contains 22 as substring.

2123925 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2123895 and 2123904.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14085 + ... + 14234.

It is an arithmetic number, because the mean of its divisors is an integer number (292640).

2^2123925 is an apocalyptic number.

2123925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2123925 is a deficient number, since it is larger than the sum of its proper divisors (1387755).

2123925 is a wasteful number, since it uses less digits than its factorization.

2123925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28332 (or 28327 counting only the distinct ones).

The product of its digits is 1080, while the sum is 24.

The square root of 2123925 is about 1457.3692051090. The cubic root of 2123925 is about 128.5423964431.

The spelling of 2123925 in words is "two million, one hundred twenty-three thousand, nine hundred twenty-five".