105587139 has 8 divisors (see below), whose sum is σ = 160894720. Its totient is φ = 60335496.

The previous prime is 105587129. The next prime is 105587149. The reversal of 105587139 is 931785501.

It is an interprime number because it is at equal distance from previous prime (105587129) and next prime (105587149).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 105587139 - 2⁹ = 105586627 is a prime.

It is a super-2 number, since 2×105587139² = 22297287844410642, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 105587097 and 105587106.

It is not an unprimeable number, because it can be changed into a prime (105587129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2513959 + ... + 2514000.

It is an arithmetic number, because the mean of its divisors is an integer number (20111840).

Almost surely, 2^105587139 is an apocalyptic number.

105587139 is a deficient number, since it is larger than the sum of its proper divisors (55307581).

105587139 is an equidigital number, since it uses as much as digits as its factorization.

105587139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5027969.

The product of its (nonzero) digits is 37800, while the sum is 39.

The square root of 105587139 is about 10275.5602766954. The cubic root of 105587139 is about 472.6471107675.

The spelling of 105587139 in words is "one hundred five million, five hundred eighty-seven thousand, one hundred thirty-nine".