105144029 has 4 divisors (see below), whose sum is σ = 107381184. Its totient is φ = 102906876.

The previous prime is 105144019. The next prime is 105144071. The reversal of 105144029 is 920441501.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-105144029 is a prime.

It is a super-2 number, since 2×105144029² = 22110533668705682, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 105143989 and 105144007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105144019) 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, 1118507 + ... + 1118600.

It is an arithmetic number, because the mean of its divisors is an integer number (26845296).

Almost surely, 2^105144029 is an apocalyptic number.

It is an amenable number.

105144029 is a deficient number, since it is larger than the sum of its proper divisors (2237155).

105144029 is an equidigital number, since it uses as much as digits as its factorization.

105144029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2237154.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 105144029 is about 10253.9762531420. The cubic root of 105144029 is about 471.9850089201.

The spelling of 105144029 in words is "one hundred five million, one hundred forty-four thousand, twenty-nine".