1300001995 has 16 divisors (see below), whose sum is σ = 1615536000. Its totient is φ = 1003056768.

The previous prime is 1300001971. The next prime is 1300002013. The reversal of 1300001995 is 5991000031.

It is a cyclic number.

It is not a de Polignac number, because 1300001995 - 2¹¹ = 1299999947 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 146341 + ... + 154969.

It is an arithmetic number, because the mean of its divisors is an integer number (100971000).

Almost surely, 2^1300001995 is an apocalyptic number.

1300001995 is a deficient number, since it is larger than the sum of its proper divisors (315534005).

1300001995 is a wasteful number, since it uses less digits than its factorization.

1300001995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9702.

The product of its (nonzero) digits is 1215, while the sum is 28.

The square root of 1300001995 is about 36055.5404203016. The cubic root of 1300001995 is about 1091.3934413503.

The spelling of 1300001995 in words is "one billion, three hundred million, one thousand, nine hundred ninety-five".