1225405106 has 8 divisors (see below), whose sum is σ = 1846135020. Its totient is φ = 610026768.

The previous prime is 1225405087. The next prime is 1225405123. The reversal of 1225405106 is 6015045221.

It can be written as a sum of positive squares in 2 ways, for example, as 1194324481 + 31080625 = 34559^2 + 5575^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1337321 + ... + 1338236.

Almost surely, 2^1225405106 is an apocalyptic number.

1225405106 is a deficient number, since it is larger than the sum of its proper divisors (620729914).

1225405106 is a wasteful number, since it uses less digits than its factorization.

1225405106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2675788.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 1225405106 is about 35005.7867501932. The cubic root of 1225405106 is about 1070.1054154156.

The spelling of 1225405106 in words is "one billion, two hundred twenty-five million, four hundred five thousand, one hundred six".