116538131 has 2 divisors, whose sum is σ = 116538132. Its totient is φ = 116538130.

The previous prime is 116538119. The next prime is 116538133. The reversal of 116538131 is 131835611.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 116538131 - 2⁶ = 116538067 is a prime.

It is a super-2 number, since 2×116538131² = 27162271953946322, which contains 22 as substring.

Together with 116538133, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 116538094 and 116538103.

It is not a weakly prime, because it can be changed into another prime (116538133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58269065 + 58269066.

It is an arithmetic number, because the mean of its divisors is an integer number (58269066).

Almost surely, 2^116538131 is an apocalyptic number.

116538131 is a deficient number, since it is larger than the sum of its proper divisors (1).

116538131 is an equidigital number, since it uses as much as digits as its factorization.

116538131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2160, while the sum is 29.

The square root of 116538131 is about 10795.2828124139. The cubic root of 116538131 is about 488.4528893273.

The spelling of 116538131 in words is "one hundred sixteen million, five hundred thirty-eight thousand, one hundred thirty-one".