216137192 has 16 divisors (see below), whose sum is σ = 405609540. Its totient is φ = 107974656.

The previous prime is 216137191. The next prime is 216137219. The reversal of 216137192 is 291731612.

It can be written as a sum of positive squares in 2 ways, for example, as 134884996 + 81252196 = 11614^2 + 9014^2 .

It is not an unprimeable number, because it can be changed into a prime (216137191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1433 + ... + 20840.

Almost surely, 2^216137192 is an apocalyptic number.

It is an amenable number.

216137192 is a deficient number, since it is larger than the sum of its proper divisors (189472348).

216137192 is a wasteful number, since it uses less digits than its factorization.

216137192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23492 (or 23488 counting only the distinct ones).

The product of its digits is 4536, while the sum is 32.

The square root of 216137192 is about 14701.6050824391. The cubic root of 216137192 is about 600.1270027449.

The spelling of 216137192 in words is "two hundred sixteen million, one hundred thirty-seven thousand, one hundred ninety-two".