2129625 has 32 divisors (see below), whose sum is σ = 3943680. Its totient is φ = 1134000.

The previous prime is 2129599. The next prime is 2129627. The reversal of 2129625 is 5269212.

It is not a de Polignac number, because 2129625 - 2⁷ = 2129497 is a prime.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2129627) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3060 + ... + 3690.

It is an arithmetic number, because the mean of its divisors is an integer number (123240).

2^2129625 is an apocalyptic number.

2129625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2129625 is a deficient number, since it is larger than the sum of its proper divisors (1814055).

2129625 is an equidigital number, since it uses as much as digits as its factorization.

2129625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655 (or 639 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 2129625 is about 1459.3234733944. The cubic root of 2129625 is about 128.6572839260.

It can be divided in two parts, 21296 and 25, that added together give a triangular number (21321 = T₂₀₆).

The spelling of 2129625 in words is "two million, one hundred twenty-nine thousand, six hundred twenty-five".