116156987 has 2 divisors, whose sum is σ = 116156988. Its totient is φ = 116156986.

The previous prime is 116156983. The next prime is 116157043. The reversal of 116156987 is 789651611.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 116156987 - 2² = 116156983 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (116156981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58078493 + 58078494.

It is an arithmetic number, because the mean of its divisors is an integer number (58078494).

Almost surely, 2^116156987 is an apocalyptic number.

116156987 is a deficient number, since it is larger than the sum of its proper divisors (1).

116156987 is an equidigital number, since it uses as much as digits as its factorization.

116156987 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90720, while the sum is 44.

The square root of 116156987 is about 10777.6150886919. The cubic root of 116156987 is about 487.9198042431.

The spelling of 116156987 in words is "one hundred sixteen million, one hundred fifty-six thousand, nine hundred eighty-seven".