105233139 has 18 divisors (see below), whose sum is σ = 165982908. Its totient is φ = 63715800.

The previous prime is 105233137. The next prime is 105233159. The reversal of 105233139 is 931332501.

It is a happy number.

105233139 is a `hidden beast` number, since 1 + 0 + 523 + 3 + 139 = 666.

It is not a de Polignac number, because 105233139 - 2¹ = 105233137 is a prime.

It is a super-2 number, since 2×105233139² = 22148027087586642, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105233137) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 101554 + ... + 102584.

Almost surely, 2^105233139 is an apocalyptic number.

105233139 is a deficient number, since it is larger than the sum of its proper divisors (60749769).

105233139 is an equidigital number, since it uses as much as digits as its factorization.

105233139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2079 (or 1045 counting only the distinct ones).

The product of its (nonzero) digits is 2430, while the sum is 27.

The square root of 105233139 is about 10258.3204765693. The cubic root of 105233139 is about 472.1183076867.

It can be divided in two parts, 1052 and 33139, that added together give a triangular number (34191 = T₂₆₁).

The spelling of 105233139 in words is "one hundred five million, two hundred thirty-three thousand, one hundred thirty-nine".