1225016868 has 48 divisors (see below), whose sum is σ = 3090153920. Its totient is φ = 376389504.

The previous prime is 1225016861. The next prime is 1225016909. The reversal of 1225016868 is 8686105221.

It is not an unprimeable number, because it can be changed into a prime (1225016861) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64171 + ... + 81042.

Almost surely, 2^1225016868 is an apocalyptic number.

It is an amenable number.

1225016868 is an abundant number, since it is smaller than the sum of its proper divisors (1865137052).

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

1225016868 is a wasteful number, since it uses less digits than its factorization.

1225016868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145276 (or 145274 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 39.

The square root of 1225016868 is about 35000.2409705990. The cubic root of 1225016868 is about 1069.9923917123.

The spelling of 1225016868 in words is "one billion, two hundred twenty-five million, sixteen thousand, eight hundred sixty-eight".