2381129 has 4 divisors (see below), whose sum is σ = 2384640. Its totient is φ = 2377620.

The previous prime is 2381117. The next prime is 2381143. The reversal of 2381129 is 9211832.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2381129 - 2²⁰ = 1332553 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2381098 and 2381107.

It is not an unprimeable number, because it can be changed into a prime (2381149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 377 + ... + 2214.

It is an arithmetic number, because the mean of its divisors is an integer number (596160).

2^2381129 is an apocalyptic number.

It is an amenable number.

2381129 is a deficient number, since it is larger than the sum of its proper divisors (3511).

2381129 is an equidigital number, since it uses as much as digits as its factorization.

2381129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3510.

The product of its digits is 864, while the sum is 26.

The square root of 2381129 is about 1543.0907296721. The cubic root of 2381129 is about 133.5347532109.

The spelling of 2381129 in words is "two million, three hundred eighty-one thousand, one hundred twenty-nine".