105239453 has 4 divisors (see below), whose sum is σ = 114806688. Its totient is φ = 95672220.

The previous prime is 105239443. The next prime is 105239473. The reversal of 105239453 is 354932501.

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 cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-105239453 is a prime.

It is a super-2 number, since 2×105239453² = 22150684935478418, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105239443) 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, 4783601 + ... + 4783622.

It is an arithmetic number, because the mean of its divisors is an integer number (28701672).

Almost surely, 2^105239453 is an apocalyptic number.

It is an amenable number.

105239453 is a deficient number, since it is larger than the sum of its proper divisors (9567235).

105239453 is an equidigital number, since it uses as much as digits as its factorization.

105239453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9567234.

The product of its (nonzero) digits is 16200, while the sum is 32.

The square root of 105239453 is about 10258.6282221357. The cubic root of 105239453 is about 472.1277498814.

The spelling of 105239453 in words is "one hundred five million, two hundred thirty-nine thousand, four hundred fifty-three".