1995479136 has 108 divisors (see below), whose sum is σ = 6601162932. Its totient is φ = 570132864.

The previous prime is 1995479131. The next prime is 1995479147. The reversal of 1995479136 is 6319745991.

1995479136 is a `hidden beast` number, since 1 + 9 + 9 + 547 + 91 + 3 + 6 = 666.

It is a super-2 number, since 2×1995479136² = 7963873964422612992, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1995479131) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 56590 + ... + 84813.

It is an arithmetic number, because the mean of its divisors is an integer number (61121879).

Almost surely, 2^1995479136 is an apocalyptic number.

1995479136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1995479136 is an abundant number, since it is smaller than the sum of its proper divisors (4605683796).

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

1995479136 is a wasteful number, since it uses less digits than its factorization.

1995479136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141433 (or 141415 counting only the distinct ones).

The product of its digits is 1837080, while the sum is 54.

The square root of 1995479136 is about 44670.7861582937. The cubic root of 1995479136 is about 1258.9710117498.

The spelling of 1995479136 in words is "one billion, nine hundred ninety-five million, four hundred seventy-nine thousand, one hundred thirty-six".