1226227725 has 18 divisors (see below), whose sum is σ = 2196310506. Its totient is φ = 653988000.

The previous prime is 1226227721. The next prime is 1226227729. The reversal of 1226227725 is 5277226221.

1226227725 is a `hidden beast` number, since 1 + 2 + 2 + 622 + 7 + 7 + 25 = 666.

It is an interprime number because it is at equal distance from previous prime (1226227721) and next prime (1226227729).

It can be written as a sum of positive squares in 3 ways, for example, as 23941449 + 1202286276 = 4893^2 + 34674^2 .

It is not a de Polignac number, because 1226227725 - 2² = 1226227721 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1226227725.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1226227721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2724726 + ... + 2725175.

Almost surely, 2^1226227725 is an apocalyptic number.

1226227725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1226227725 is a deficient number, since it is larger than the sum of its proper divisors (970082781).

1226227725 is a wasteful number, since it uses less digits than its factorization.

1226227725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5449917 (or 5449909 counting only the distinct ones).

The product of its digits is 47040, while the sum is 36.

The square root of 1226227725 is about 35017.5345362862. The cubic root of 1226227725 is about 1070.3448171001.

The spelling of 1226227725 in words is "one billion, two hundred twenty-six million, two hundred twenty-seven thousand, seven hundred twenty-five".