2129375 has 10 divisors (see below), whose sum is σ = 2661648. Its totient is φ = 1703000.

The previous prime is 2129371. The next prime is 2129389. The reversal of 2129375 is 5739212.

It is not a de Polignac number, because 2129375 - 2² = 2129371 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2129371) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 1079 + ... + 2328.

2^2129375 is an apocalyptic number.

2129375 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2129375 is a deficient number, since it is larger than the sum of its proper divisors (532273).

2129375 is an frugal number, since it uses more digits than its factorization.

2129375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3427 (or 3412 counting only the distinct ones).

The product of its digits is 3780, while the sum is 29.

The square root of 2129375 is about 1459.2378147512. The cubic root of 2129375 is about 128.6522493026.

The spelling of 2129375 in words is "two million, one hundred twenty-nine thousand, three hundred seventy-five".