105420539 has 16 divisors (see below), whose sum is σ = 124984320. Its totient is φ = 87000480.

The previous prime is 105420533. The next prime is 105420559. The reversal of 105420539 is 935024501.

It is not a de Polignac number, because 105420539 - 2²⁰ = 104371963 is a prime.

It is a super-2 number, since 2×105420539² = 22226980086101042, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105420533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127682 + ... + 128504.

It is an arithmetic number, because the mean of its divisors is an integer number (7811520).

Almost surely, 2^105420539 is an apocalyptic number.

105420539 is a deficient number, since it is larger than the sum of its proper divisors (19563781).

105420539 is an equidigital number, since it uses as much as digits as its factorization.

105420539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1490.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 105420539 is about 10267.4504625053. The cubic root of 105420539 is about 472.3983921563.

The spelling of 105420539 in words is "one hundred five million, four hundred twenty thousand, five hundred thirty-nine".