1225108285 has 8 divisors (see below), whose sum is σ = 1484686296. Its totient is φ = 970382400.

The previous prime is 1225108279. The next prime is 1225108307. The reversal of 1225108285 is 5828015221.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 187881849 + 1037226436 = 13707^2 + 32206^2 .

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

It is not a de Polignac number, because 1225108285 - 2⁵ = 1225108253 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1225108285.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1212474 + ... + 1213483.

It is an arithmetic number, because the mean of its divisors is an integer number (185585787).

Almost surely, 2^1225108285 is an apocalyptic number.

It is an amenable number.

1225108285 is a deficient number, since it is larger than the sum of its proper divisors (259578011).

1225108285 is a wasteful number, since it uses less digits than its factorization.

1225108285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2426063.

The product of its (nonzero) digits is 12800, while the sum is 34.

The square root of 1225108285 is about 35001.5468943874. The cubic root of 1225108285 is about 1070.0190071448.

The spelling of 1225108285 in words is "one billion, two hundred twenty-five million, one hundred eight thousand, two hundred eighty-five".