116391197 has 8 divisors (see below), whose sum is σ = 132717816. Its totient is φ = 101117952.

The previous prime is 116391193. The next prime is 116391203. The reversal of 116391197 is 791193611.

It can be written as a sum of positive squares in 4 ways, for example, as 6791236 + 109599961 = 2606^2 + 10469^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 116391197 - 2² = 116391193 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 116391197.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116391193) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 263108 + ... + 263549.

It is an arithmetic number, because the mean of its divisors is an integer number (16589727).

Almost surely, 2^116391197 is an apocalyptic number.

116391197 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

116391197 is a deficient number, since it is larger than the sum of its proper divisors (16326619).

116391197 is a wasteful number, since it uses less digits than its factorization.

116391197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526687.

The product of its digits is 10206, while the sum is 38.

The square root of 116391197 is about 10788.4751934646. The cubic root of 116391197 is about 488.2475187171.

The spelling of 116391197 in words is "one hundred sixteen million, three hundred ninety-one thousand, one hundred ninety-seven".