2119431 has 16 divisors (see below), whose sum is σ = 3011840. Its totient is φ = 1325592.

The previous prime is 2119399. The next prime is 2119433. The reversal of 2119431 is 1349112.

It is not a de Polignac number, because 2119431 - 2⁵ = 2119399 is a prime.

It is a super-2 number, since 2×2119431² = 8983975527522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2119398 and 2119407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2119433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20526 + ... + 20628.

It is an arithmetic number, because the mean of its divisors is an integer number (188240).

2^2119431 is an apocalyptic number.

2119431 is a deficient number, since it is larger than the sum of its proper divisors (892409).

2119431 is an equidigital number, since it uses as much as digits as its factorization.

2119431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163 (or 125 counting only the distinct ones).

The product of its digits is 216, while the sum is 21.

The square root of 2119431 is about 1455.8265693413. The cubic root of 2119431 is about 128.4516717332.

The spelling of 2119431 in words is "two million, one hundred nineteen thousand, four hundred thirty-one".