105840619 has 2 divisors, whose sum is σ = 105840620. Its totient is φ = 105840618.

The previous prime is 105840607. The next prime is 105840643. The reversal of 105840619 is 916048501.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 105840619 - 2²¹ = 103743467 is a prime.

It is a super-2 number, since 2×105840619² = 22404473260606322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (105840719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52920309 + 52920310.

It is an arithmetic number, because the mean of its divisors is an integer number (52920310).

Almost surely, 2^105840619 is an apocalyptic number.

105840619 is a deficient number, since it is larger than the sum of its proper divisors (1).

105840619 is an equidigital number, since it uses as much as digits as its factorization.

105840619 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 105840619 is about 10287.8870036563. The cubic root of 105840619 is about 473.0250319372.

The spelling of 105840619 in words is "one hundred five million, eight hundred forty thousand, six hundred nineteen".