2120875 has 24 divisors (see below), whose sum is σ = 2852928. Its totient is φ = 1573200.

The previous prime is 2120863. The next prime is 2120879. The reversal of 2120875 is 5780212.

It is not a de Polignac number, because 2120875 - 2⁵ = 2120843 is a prime.

It is a super-2 number, since 2×2120875² = 8996221531250, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2120879) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45102 + ... + 45148.

It is an arithmetic number, because the mean of its divisors is an integer number (118872).

2^2120875 is an apocalyptic number.

2120875 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2120875 is a deficient number, since it is larger than the sum of its proper divisors (732053).

2120875 is an equidigital number, since it uses as much as digits as its factorization.

2120875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100 (or 71 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 2120875 is about 1456.3224230918. The cubic root of 2120875 is about 128.4808371249.

The spelling of 2120875 in words is "two million, one hundred twenty thousand, eight hundred seventy-five".