1995555135 has 80 divisors (see below), whose sum is σ = 3784980096. Its totient is φ = 897551424.

The previous prime is 1995555119. The next prime is 1995555167. The reversal of 1995555135 is 5315555991.

It is not a de Polignac number, because 1995555135 - 2⁴ = 1995555119 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 2412592 + ... + 2413418.

Almost surely, 2^1995555135 is an apocalyptic number.

1995555135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1995555135 is a deficient number, since it is larger than the sum of its proper divisors (1789424961).

1995555135 is an frugal number, since it uses more digits than its factorization.

1995555135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 930 (or 909 counting only the distinct ones).

The product of its digits is 759375, while the sum is 48.

The square root of 1995555135 is about 44671.6368068151. The cubic root of 1995555135 is about 1258.9869944314.

The spelling of 1995555135 in words is "one billion, nine hundred ninety-five million, five hundred fifty-five thousand, one hundred thirty-five".