105802639 has 2 divisors, whose sum is σ = 105802640. Its totient is φ = 105802638.

The previous prime is 105802603. The next prime is 105802699. The reversal of 105802639 is 936208501.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 105802639 - 2¹⁵ = 105769871 is a prime.

It is a super-2 number, since 2×105802639² = 22388396838728642, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105802699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52901319 + 52901320.

It is an arithmetic number, because the mean of its divisors is an integer number (52901320).

Almost surely, 2^105802639 is an apocalyptic number.

105802639 is a deficient number, since it is larger than the sum of its proper divisors (1).

105802639 is an equidigital number, since it uses as much as digits as its factorization.

105802639 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 34.

The square root of 105802639 is about 10286.0409779468. The cubic root of 105802639 is about 472.9684448404.

The spelling of 105802639 in words is "one hundred five million, eight hundred two thousand, six hundred thirty-nine".