226156225 has 6 divisors (see below), whose sum is σ = 280433750. Its totient is φ = 180924960.

The previous prime is 226156207. The next prime is 226156261. The reversal of 226156225 is 522651622.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 3579664 + 222576561 = 1892^2 + 14919^2 .

It is not a de Polignac number, because 226156225 - 2⁵ = 226156193 is a prime.

It is a super-2 number, since 2×226156225² = 102293276212501250, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4523100 + ... + 4523149.

Almost surely, 2^226156225 is an apocalyptic number.

226156225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

226156225 is a deficient number, since it is larger than the sum of its proper divisors (54277525).

226156225 is an equidigital number, since it uses as much as digits as its factorization.

226156225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9046259 (or 9046254 counting only the distinct ones).

The product of its digits is 14400, while the sum is 31.

The square root of 226156225 is about 15038.4914469504. The cubic root of 226156225 is about 609.2602561951.

The spelling of 226156225 in words is "two hundred twenty-six million, one hundred fifty-six thousand, two hundred twenty-five".