116139893 has 2 divisors, whose sum is σ = 116139894. Its totient is φ = 116139892.

The previous prime is 116139889. The next prime is 116139911. The reversal of 116139893 is 398931611.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 81306289 + 34833604 = 9017^2 + 5902^2 .

It is a cyclic number.

It is not a de Polignac number, because 116139893 - 2² = 116139889 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 116139893.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (116139823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58069946 + 58069947.

It is an arithmetic number, because the mean of its divisors is an integer number (58069947).

Almost surely, 2^116139893 is an apocalyptic number.

It is an amenable number.

116139893 is a deficient number, since it is larger than the sum of its proper divisors (1).

116139893 is an equidigital number, since it uses as much as digits as its factorization.

116139893 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34992, while the sum is 41.

The square root of 116139893 is about 10776.8220269243. The cubic root of 116139893 is about 487.8958685031.

The spelling of 116139893 in words is "one hundred sixteen million, one hundred thirty-nine thousand, eight hundred ninety-three".