1226953125 has 54 divisors (see below), whose sum is σ = 2221678550. Its totient is φ = 652500000.

The previous prime is 1226953073. The next prime is 1226953181. The reversal of 1226953125 is 5213596221.

It is a happy number.

It can be written as a sum of positive squares in 9 ways, for example, as 548402724 + 678550401 = 23418^2 + 26049^2 .

It is not a de Polignac number, because 1226953125 - 2⁸ = 1226952869 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1226953125.

It is a congruent number.

It is an unprimeable number.

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 in 53 ways as a sum of consecutive naturals, for example, 3515451 + ... + 3515799.

Almost surely, 2^1226953125 is an apocalyptic number.

1226953125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1226953125 is a deficient number, since it is larger than the sum of its proper divisors (994725425).

1226953125 is an frugal number, since it uses more digits than its factorization.

1226953125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395 (or 357 counting only the distinct ones).

The product of its digits is 32400, while the sum is 36.

The square root of 1226953125 is about 35027.8906730051. The cubic root of 1226953125 is about 1070.5558369243. Note that the first 3 decimals are identical.

The spelling of 1226953125 in words is "one billion, two hundred twenty-six million, nine hundred fifty-three thousand, one hundred twenty-five".