2142625 has 16 divisors (see below), whose sum is σ = 2727504. Its totient is φ = 1680000.

The previous prime is 2142601. The next prime is 2142641. The reversal of 2142625 is 5262412.

It can be written as a sum of positive squares in 8 ways, for example, as 1140624 + 1002001 = 1068^2 + 1001^2 .

It is not a de Polignac number, because 2142625 - 2¹⁵ = 2109857 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2142596 and 2142605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7485 + ... + 7765.

It is an arithmetic number, because the mean of its divisors is an integer number (170469).

2^2142625 is an apocalyptic number.

2142625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2142625 is a deficient number, since it is larger than the sum of its proper divisors (584879).

2142625 is an equidigital number, since it uses as much as digits as its factorization.

2142625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357 (or 347 counting only the distinct ones).

The product of its digits is 960, while the sum is 22.

The square root of 2142625 is about 1463.7708153943. The cubic root of 2142625 is about 128.9185432108.

The spelling of 2142625 in words is "two million, one hundred forty-two thousand, six hundred twenty-five".