216091192 has 16 divisors (see below), whose sum is σ = 408889800. Its totient is φ = 107053920.

The previous prime is 216091129. The next prime is 216091201. The reversal of 216091192 is 291190612.

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, 123034 + ... + 124777.

Almost surely, 2^216091192 is an apocalyptic number.

It is an amenable number.

216091192 is a deficient number, since it is larger than the sum of its proper divisors (192798608).

216091192 is a wasteful number, since it uses less digits than its factorization.

216091192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247926 (or 247922 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 31.

The square root of 216091192 is about 14700.0405441618. The cubic root of 216091192 is about 600.0844251571.

It can be divided in two parts, 21609 and 1192, that added together give a square (22801 = 151²).

The spelling of 216091192 in words is "two hundred sixteen million, ninety-one thousand, one hundred ninety-two".