116401139 has 4 divisors (see below), whose sum is σ = 116423520. Its totient is φ = 116378760.

The previous prime is 116401121. The next prime is 116401141. The reversal of 116401139 is 931104611.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 116401139 - 2¹⁶ = 116335603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (116401189) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1142 + ... + 15300.

It is an arithmetic number, because the mean of its divisors is an integer number (29105880).

Almost surely, 2^116401139 is an apocalyptic number.

116401139 is a deficient number, since it is larger than the sum of its proper divisors (22381).

116401139 is an equidigital number, since it uses as much as digits as its factorization.

116401139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22380.

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 116401139 is about 10788.9359530957. The cubic root of 116401139 is about 488.2614201654.

The spelling of 116401139 in words is "one hundred sixteen million, four hundred one thousand, one hundred thirty-nine".