216701192 has 8 divisors (see below), whose sum is σ = 406314750. Its totient is φ = 108350592.

The previous prime is 216701189. The next prime is 216701203. The reversal of 216701192 is 291107612.

It can be written as a sum of positive squares in only one way, i.e., 191158276 + 25542916 = 13826^2 + 5054^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×216701192² = 93918813228441728, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13543817 + ... + 13543832.

Almost surely, 2^216701192 is an apocalyptic number.

It is an amenable number.

216701192 is a deficient number, since it is larger than the sum of its proper divisors (189613558).

216701192 is a wasteful number, since it uses less digits than its factorization.

216701192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27087655 (or 27087651 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 29.

The square root of 216701192 is about 14720.7741644249. The cubic root of 216701192 is about 600.6485505695.

The spelling of 216701192 in words is "two hundred sixteen million, seven hundred one thousand, one hundred ninety-two".