1225246605 has 24 divisors (see below), whose sum is σ = 2154817056. Its totient is φ = 594058080.

The previous prime is 1225246579. The next prime is 1225246637. The reversal of 1225246605 is 5066425221.

It is not a de Polignac number, because 1225246605 - 2⁶ = 1225246541 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 335719 + ... + 339348.

It is an arithmetic number, because the mean of its divisors is an integer number (89784044).

Almost surely, 2^1225246605 is an apocalyptic number.

1225246605 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1225246605 is a deficient number, since it is larger than the sum of its proper divisors (929570451).

1225246605 is a wasteful number, since it uses less digits than its factorization.

1225246605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 675097 (or 675086 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 33.

The square root of 1225246605 is about 35003.5227512889. The cubic root of 1225246605 is about 1070.0592755470.

The spelling of 1225246605 in words is "one billion, two hundred twenty-five million, two hundred forty-six thousand, six hundred five".