2225919 has 4 divisors (see below), whose sum is σ = 2967896. Its totient is φ = 1483944.

The previous prime is 2225887. The next prime is 2225959. The reversal of 2225919 is 9195222.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2225919 - 2⁵ = 2225887 is a prime.

It is a super-2 number, since 2×2225919² = 9909430789122, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

2225919 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2225959) 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, 370984 + ... + 370989.

It is an arithmetic number, because the mean of its divisors is an integer number (741974).

2^2225919 is an apocalyptic number.

2225919 is a deficient number, since it is larger than the sum of its proper divisors (741977).

2225919 is an equidigital number, since it uses as much as digits as its factorization.

2225919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 741976.

The product of its digits is 3240, while the sum is 30.

The square root of 2225919 is about 1491.9514067154. The cubic root of 2225919 is about 130.5679099286.

The spelling of 2225919 in words is "two million, two hundred twenty-five thousand, nine hundred nineteen".