1995191654 has 8 divisors (see below), whose sum is σ = 2998511400. Its totient is φ = 995687856.

The previous prime is 1995191647. The next prime is 1995191659. The reversal of 1995191654 is 4561915991.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1995191659) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 952679 + ... + 954770.

It is an arithmetic number, because the mean of its divisors is an integer number (374813925).

Almost surely, 2^1995191654 is an apocalyptic number.

1995191654 is a deficient number, since it is larger than the sum of its proper divisors (1003319746).

1995191654 is a wasteful number, since it uses less digits than its factorization.

1995191654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1907974.

The product of its digits is 437400, while the sum is 50.

The square root of 1995191654 is about 44667.5682570699. The cubic root of 1995191654 is about 1258.9105502663.

The spelling of 1995191654 in words is "one billion, nine hundred ninety-five million, one hundred ninety-one thousand, six hundred fifty-four".