1001995695 has 12 divisors (see below), whose sum is σ = 1736792616. Its totient is φ = 534397680.

The previous prime is 1001995693. The next prime is 1001995703. The reversal of 1001995695 is 5965991001.

It is a happy number.

It is not a de Polignac number, because 1001995695 - 2¹ = 1001995693 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 22266571 = 1001995695 / (1 + 0 + 0 + 1 + 9 + 9 + 5 + 6 + 9 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 1001995695.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001995693) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11133241 + ... + 11133330.

It is an arithmetic number, because the mean of its divisors is an integer number (144732718).

Almost surely, 2^1001995695 is an apocalyptic number.

1001995695 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1001995695 is a deficient number, since it is larger than the sum of its proper divisors (734796921).

1001995695 is a wasteful number, since it uses less digits than its factorization.

1001995695 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22266582 (or 22266579 counting only the distinct ones).

The product of its (nonzero) digits is 109350, while the sum is 45.

The square root of 1001995695 is about 31654.3155825552. The cubic root of 1001995695 is about 1000.6647896235.

The spelling of 1001995695 in words is "one billion, one million, nine hundred ninety-five thousand, six hundred ninety-five".