101931472 has 20 divisors (see below), whose sum is σ = 203863936. Its totient is φ = 49321440.

The previous prime is 101931461. The next prime is 101931481. The reversal of 101931472 is 274139101.

101931472 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 101931472.

It is a congruent number.

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, 102258 + ... + 103249.

Almost surely, 2^101931472 is an apocalyptic number.

It is an amenable number.

101931472 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

101931472 is a wasteful number, since it uses less digits than its factorization.

101931472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205546 (or 205540 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 101931472 is about 10096.1117267986. Note that the first 3 decimals coincide. The cubic root of 101931472 is about 467.1282136608.

The spelling of 101931472 in words is "one hundred one million, nine hundred thirty-one thousand, four hundred seventy-two".