116625389 has 4 divisors (see below), whose sum is σ = 123485724. Its totient is φ = 109765056.

The previous prime is 116625373. The next prime is 116625403. The reversal of 116625389 is 983526611.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 983526611 = 4259 ⋅230929.

It can be written as a sum of positive squares in 2 ways, for example, as 109035364 + 7590025 = 10442^2 + 2755^2 .

It is not a de Polignac number, because 116625389 - 2⁴ = 116625373 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116625319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3430142 + ... + 3430175.

It is an arithmetic number, because the mean of its divisors is an integer number (30871431).

Almost surely, 2^116625389 is an apocalyptic number.

It is an amenable number.

116625389 is a deficient number, since it is larger than the sum of its proper divisors (6860335).

116625389 is an equidigital number, since it uses as much as digits as its factorization.

116625389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6860334.

The product of its digits is 77760, while the sum is 41.

The square root of 116625389 is about 10799.3235436299. The cubic root of 116625389 is about 488.5747687176.

The spelling of 116625389 in words is "one hundred sixteen million, six hundred twenty-five thousand, three hundred eighty-nine".