116217951 has 4 divisors (see below), whose sum is σ = 154957272. Its totient is φ = 77478632.

The previous prime is 116217929. The next prime is 116217979. The reversal of 116217951 is 159712611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 159712611 = 3 ⋅53237537.

It is a cyclic number.

It is not a de Polignac number, because 116217951 - 2⁷ = 116217823 is a prime.

It is a super-2 number, since 2×116217951² = 27013224269276802, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116217991) 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, 19369656 + ... + 19369661.

It is an arithmetic number, because the mean of its divisors is an integer number (38739318).

Almost surely, 2^116217951 is an apocalyptic number.

116217951 is a deficient number, since it is larger than the sum of its proper divisors (38739321).

116217951 is an equidigital number, since it uses as much as digits as its factorization.

116217951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38739320.

The product of its digits is 3780, while the sum is 33.

The square root of 116217951 is about 10780.4429871875. The cubic root of 116217951 is about 488.0051494910.

The spelling of 116217951 in words is "one hundred sixteen million, two hundred seventeen thousand, nine hundred fifty-one".