2125381 has 8 divisors (see below), whose sum is σ = 2227680. Its totient is φ = 2025072.

The previous prime is 2125373. The next prime is 2125393. The reversal of 2125381 is 1835212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2125381 - 2³ = 2125373 is a prime.

It is a super-2 number, since 2×2125381² = 9034488790322, which contains 22 as substring.

It is a Duffinian number.

2125381 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2125181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1966 + ... + 2848.

It is an arithmetic number, because the mean of its divisors is an integer number (278460).

2^2125381 is an apocalyptic number.

It is an amenable number.

2125381 is a deficient number, since it is larger than the sum of its proper divisors (102299).

2125381 is an equidigital number, since it uses as much as digits as its factorization.

2125381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 995.

The product of its digits is 480, while the sum is 22.

The square root of 2125381 is about 1457.8686497761. The cubic root of 2125381 is about 128.5717626682.

The spelling of 2125381 in words is "two million, one hundred twenty-five thousand, three hundred eighty-one".