105101405 has 4 divisors (see below), whose sum is σ = 126121692. Its totient is φ = 84081120.

The previous prime is 105101401. The next prime is 105101411. The reversal of 105101405 is 504101501.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 82500889 + 22600516 = 9083^2 + 4754^2 .

It is not a de Polignac number, because 105101405 - 2² = 105101401 is a prime.

It is a super-2 number, since 2×105101405² = 22092610665948050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105101401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10510136 + ... + 10510145.

It is an arithmetic number, because the mean of its divisors is an integer number (31530423).

Almost surely, 2^105101405 is an apocalyptic number.

It is an amenable number.

105101405 is a deficient number, since it is larger than the sum of its proper divisors (21020287).

105101405 is an equidigital number, since it uses as much as digits as its factorization.

105101405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21020286.

The product of its (nonzero) digits is 100, while the sum is 17.

The square root of 105101405 is about 10251.8976292197. The cubic root of 105101405 is about 471.9212214712.

Adding to 105101405 its reverse (504101501), we get a palindrome (609202906).

The spelling of 105101405 in words is "one hundred five million, one hundred one thousand, four hundred five".