2225401 has 2 divisors, whose sum is σ = 2225402. Its totient is φ = 2225400.

The previous prime is 2225393. The next prime is 2225407. The reversal of 2225401 is 1045222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1836025 + 389376 = 1355^2 + 624^2 .

It is a cyclic number.

It is not a de Polignac number, because 2225401 - 2³ = 2225393 is a prime.

It is a super-2 number, since 2×2225401² = 9904819221602, which contains 22 as substring.

It is an Ulam number.

2225401 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (2225407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1112700 + 1112701.

It is an arithmetic number, because the mean of its divisors is an integer number (1112701).

2^2225401 is an apocalyptic number.

It is an amenable number.

2225401 is a deficient number, since it is larger than the sum of its proper divisors (1).

2225401 is an equidigital number, since it uses as much as digits as its factorization.

2225401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 2225401 is about 1491.7777984673. Note that the first 4 decimals coincide. The cubic root of 2225401 is about 130.5577808651.

The spelling of 2225401 in words is "two million, two hundred twenty-five thousand, four hundred one".