105382819 has 4 divisors (see below), whose sum is σ = 106187400. Its totient is φ = 104578240.

The previous prime is 105382811. The next prime is 105382841. The reversal of 105382819 is 918283501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 918283501 = 37 ⋅24818473.

It is a cyclic number.

It is not a de Polignac number, because 105382819 - 2³ = 105382811 is a prime.

It is a super-2 number, since 2×105382819² = 22211077080773522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105382811) 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, 402094 + ... + 402355.

It is an arithmetic number, because the mean of its divisors is an integer number (26546850).

Almost surely, 2^105382819 is an apocalyptic number.

105382819 is a deficient number, since it is larger than the sum of its proper divisors (804581).

105382819 is an equidigital number, since it uses as much as digits as its factorization.

105382819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 804580.

The product of its (nonzero) digits is 17280, while the sum is 37.

The square root of 105382819 is about 10265.6134254120. The cubic root of 105382819 is about 472.3420432602.

The spelling of 105382819 in words is "one hundred five million, three hundred eighty-two thousand, eight hundred nineteen".