211516097 has 16 divisors (see below), whose sum is σ = 236943168. Its totient is φ = 187548480.

The previous prime is 211516061. The next prime is 211516117. The reversal of 211516097 is 790615112.

It is a cyclic number.

It is not a de Polignac number, because 211516097 - 2⁶ = 211516033 is a prime.

It is a super-2 number, since 2×211516097² = 89478118580226818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211516297) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30998 + ... + 37200.

It is an arithmetic number, because the mean of its divisors is an integer number (14808948).

Almost surely, 2^211516097 is an apocalyptic number.

It is an amenable number.

211516097 is a deficient number, since it is larger than the sum of its proper divisors (25427071).

211516097 is a wasteful number, since it uses less digits than its factorization.

211516097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6320.

The product of its (nonzero) digits is 3780, while the sum is 32.

The square root of 211516097 is about 14543.5929879793. The cubic root of 211516097 is about 595.8191734433.

The spelling of 211516097 in words is "two hundred eleven million, five hundred sixteen thousand, ninety-seven".