1300001560 has 256 divisors, whose sum is σ = 3772137600. Its totient is φ = 395673600.

The previous prime is 1300001557. The next prime is 1300001579. The reversal of 1300001560 is 651000031.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2819730 + ... + 2820190.

Almost surely, 2^1300001560 is an apocalyptic number.

1300001560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1300001560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1886068800).

1300001560 is an abundant number, since it is smaller than the sum of its proper divisors (2472136040).

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

1300001560 is a wasteful number, since it uses less digits than its factorization.

1300001560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542 (or 538 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 1300001560 is about 36055.5343879411. The cubic root of 1300001560 is about 1091.3933196181.

Adding to 1300001560 its reverse (651000031), we get a palindrome (1951001591).

The spelling of 1300001560 in words is "one billion, three hundred million, one thousand, five hundred sixty".