123844071 has 32 divisors (see below), whose sum is σ = 189226240. Its totient is φ = 71414784.

The previous prime is 123844057. The next prime is 123844081. The reversal of 123844071 is 170448321.

It is not a de Polignac number, because 123844071 - 2¹³ = 123835879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123844081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 71016 + ... + 72738.

It is an arithmetic number, because the mean of its divisors is an integer number (5913320).

Almost surely, 2^123844071 is an apocalyptic number.

123844071 is a deficient number, since it is larger than the sum of its proper divisors (65382169).

123844071 is a wasteful number, since it uses less digits than its factorization.

123844071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1855.

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 123844071 is about 11128.5251044332. The cubic root of 123844071 is about 498.4539859414.

The spelling of 123844071 in words is "one hundred twenty-three million, eight hundred forty-four thousand, seventy-one".