1895144172 has 12 divisors (see below), whose sum is σ = 4422003096. Its totient is φ = 631714720.

The previous prime is 1895144159. The next prime is 1895144191. The reversal of 1895144172 is 2714415981.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78964329 + ... + 78964352.

It is an arithmetic number, because the mean of its divisors is an integer number (368500258).

Almost surely, 2^1895144172 is an apocalyptic number.

1895144172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1895144172 is an abundant number, since it is smaller than the sum of its proper divisors (2526858924).

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

1895144172 is a wasteful number, since it uses less digits than its factorization.

1895144172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157928688 (or 157928686 counting only the distinct ones).

The product of its digits is 80640, while the sum is 42.

The square root of 1895144172 is about 43533.2536344344. The cubic root of 1895144172 is about 1237.5062986722.

The spelling of 1895144172 in words is "one billion, eight hundred ninety-five million, one hundred forty-four thousand, one hundred seventy-two".