105195899 has 4 divisors (see below), whose sum is σ = 105217464. Its totient is φ = 105174336.

The previous prime is 105195889. The next prime is 105195907. The reversal of 105195899 is 998591501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 998591501 = 2551 ⋅391451.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-105195899 is a prime.

It is a super-2 number, since 2×105195899² = 22132354332836402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105195889) 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, 404 + ... + 14510.

It is an arithmetic number, because the mean of its divisors is an integer number (26304366).

Almost surely, 2^105195899 is an apocalyptic number.

105195899 is a deficient number, since it is larger than the sum of its proper divisors (21565).

105195899 is an equidigital number, since it uses as much as digits as its factorization.

105195899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21564.

The product of its (nonzero) digits is 145800, while the sum is 47.

The square root of 105195899 is about 10256.5052040156. The cubic root of 105195899 is about 472.0626098957.

The spelling of 105195899 in words is "one hundred five million, one hundred ninety-five thousand, eight hundred ninety-nine".