1225077568 has 168 divisors, whose sum is σ = 2954979104. Its totient is φ = 500290560.

The previous prime is 1225077533. The next prime is 1225077577. The reversal of 1225077568 is 8657705221.

It is a Harshad number since it is a multiple of its sum of digits (43).

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, 4328755 + ... + 4329037.

Almost surely, 2^1225077568 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1225077568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1477489552).

1225077568 is an abundant number, since it is smaller than the sum of its proper divisors (1729901536).

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

1225077568 is a wasteful number, since it uses less digits than its factorization.

1225077568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373 (or 352 counting only the distinct ones).

The product of its (nonzero) digits is 235200, while the sum is 43.

The square root of 1225077568 is about 35001.1080967446. The cubic root of 1225077568 is about 1070.0100642487.

The spelling of 1225077568 in words is "one billion, two hundred twenty-five million, seventy-seven thousand, five hundred sixty-eight".