1225445016 has 16 divisors (see below), whose sum is σ = 3063612600. Its totient is φ = 408481664.

The previous prime is 1225445009. The next prime is 1225445029. The reversal of 1225445016 is 6105445221.

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 3 ways as a sum of consecutive naturals, for example, 25530081 + ... + 25530128.

Almost surely, 2^1225445016 is an apocalyptic number.

It is an amenable number.

1225445016 is an abundant number, since it is smaller than the sum of its proper divisors (1838167584).

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

1225445016 is a wasteful number, since it uses less digits than its factorization.

1225445016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51060218 (or 51060214 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 1225445016 is about 35006.3567941595. The cubic root of 1225445016 is about 1070.1170326469.

The spelling of 1225445016 in words is "one billion, two hundred twenty-five million, four hundred forty-five thousand, sixteen".