1225487912 has 32 divisors (see below), whose sum is σ = 2532539520. Its totient is φ = 551293440.

The previous prime is 1225487881. The next prime is 1225487929. The reversal of 1225487912 is 2197845221.

It is a self number, because there is not a number n which added to its sum of digits gives 1225487912.

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 7 ways as a sum of consecutive naturals, for example, 63248 + ... + 80319.

It is an arithmetic number, because the mean of its divisors is an integer number (79141860).

Almost surely, 2^1225487912 is an apocalyptic number.

It is an amenable number.

1225487912 is an abundant number, since it is smaller than the sum of its proper divisors (1307051608).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1225487912 is a wasteful number, since it uses less digits than its factorization.

1225487912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143681 (or 143677 counting only the distinct ones).

The product of its digits is 80640, while the sum is 41.

The square root of 1225487912 is about 35006.9694775198. The cubic root of 1225487912 is about 1070.1295187788.

The spelling of 1225487912 in words is "one billion, two hundred twenty-five million, four hundred eighty-seven thousand, nine hundred twelve".