116538089 has 2 divisors, whose sum is σ = 116538090. Its totient is φ = 116538088.

The previous prime is 116538067. The next prime is 116538101. The reversal of 116538089 is 980835611.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 115885225 + 652864 = 10765^2 + 808^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-116538089 is a prime.

It is a super-2 number, since 2×116538089² = 27162252375543842, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (116538029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58269044 + 58269045.

It is an arithmetic number, because the mean of its divisors is an integer number (58269045).

Almost surely, 2^116538089 is an apocalyptic number.

It is an amenable number.

116538089 is a deficient number, since it is larger than the sum of its proper divisors (1).

116538089 is an equidigital number, since it uses as much as digits as its factorization.

116538089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 41.

The square root of 116538089 is about 10795.2808671197. The cubic root of 116538089 is about 488.4528306483.

The spelling of 116538089 in words is "one hundred sixteen million, five hundred thirty-eight thousand, eighty-nine".