105930139 has 8 divisors (see below), whose sum is σ = 121282560. Its totient is φ = 90632616.

The previous prime is 105930119. The next prime is 105930191. The reversal of 105930139 is 931039501.

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

It is a cyclic number.

It is not a de Polignac number, because 105930139 - 2¹⁵ = 105897371 is a prime.

It is a super-2 number, since 2×105930139² = 22442388697118642, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 105930139.

It is not an unprimeable number, because it can be changed into a prime (105930119) 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, 9499 + ... + 17380.

It is an arithmetic number, because the mean of its divisors is an integer number (15160320).

Almost surely, 2^105930139 is an apocalyptic number.

105930139 is a deficient number, since it is larger than the sum of its proper divisors (15352421).

105930139 is an equidigital number, since it uses as much as digits as its factorization.

105930139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27449.

The product of its (nonzero) digits is 3645, while the sum is 31.

The square root of 105930139 is about 10292.2368317096. The cubic root of 105930139 is about 473.1583558864.

The spelling of 105930139 in words is "one hundred five million, nine hundred thirty thousand, one hundred thirty-nine".