2225391 has 8 divisors (see below), whose sum is σ = 3391104. Its totient is φ = 1271640.

The previous prime is 2225389. The next prime is 2225393. The reversal of 2225391 is 1935222.

It is an interprime number because it is at equal distance from previous prime (2225389) and next prime (2225393).

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

It is not a de Polignac number, because 2225391 - 2¹ = 2225389 is a prime.

2225391 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2225393) 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, 52965 + ... + 53006.

It is an arithmetic number, because the mean of its divisors is an integer number (423888).

2^2225391 is an apocalyptic number.

2225391 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2225391 is a deficient number, since it is larger than the sum of its proper divisors (1165713).

2225391 is a wasteful number, since it uses less digits than its factorization.

2225391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105981.

The product of its digits is 1080, while the sum is 24.

The square root of 2225391 is about 1491.7744467580. The cubic root of 2225391 is about 130.5575853079.

The spelling of 2225391 in words is "two million, two hundred twenty-five thousand, three hundred ninety-one".