1351137568 has 48 divisors (see below), whose sum is σ = 2909118240. Its totient is φ = 612620800.

The previous prime is 1351137539. The next prime is 1351137607. The reversal of 1351137568 is 8657311531.

It is a self number, because there is not a number n which added to its sum of digits gives 1351137568.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142908 + ... + 152068.

It is an arithmetic number, because the mean of its divisors is an integer number (60606630).

Almost surely, 2^1351137568 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 1351137568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1454559120).

1351137568 is an abundant number, since it is smaller than the sum of its proper divisors (1557980672).

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

1351137568 is a wasteful number, since it uses less digits than its factorization.

1351137568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9601 (or 9593 counting only the distinct ones).

The product of its digits is 75600, while the sum is 40.

The square root of 1351137568 is about 36757.8232217306. The cubic root of 1351137568 is about 1105.5197947601.

The spelling of 1351137568 in words is "one billion, three hundred fifty-one million, one hundred thirty-seven thousand, five hundred sixty-eight".