105342449 has 4 divisors (see below), whose sum is σ = 105600420. Its totient is φ = 105084480.

The previous prime is 105342443. The next prime is 105342469. The reversal of 105342449 is 944243501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 944243501 = 227 ⋅4159663.

It can be written as a sum of positive squares in 2 ways, for example, as 66716224 + 38626225 = 8168^2 + 6215^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-105342449 is a prime.

It is a super-2 number, since 2×105342449² = 22194063122635202, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105342443) 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, 128372 + ... + 129189.

It is an arithmetic number, because the mean of its divisors is an integer number (26400105).

Almost surely, 2^105342449 is an apocalyptic number.

It is an amenable number.

105342449 is a deficient number, since it is larger than the sum of its proper divisors (257971).

105342449 is an equidigital number, since it uses as much as digits as its factorization.

105342449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257970.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 105342449 is about 10263.6469639208. The cubic root of 105342449 is about 472.2817207020.

The spelling of 105342449 in words is "one hundred five million, three hundred forty-two thousand, four hundred forty-nine".