123744071 has 16 divisors (see below), whose sum is σ = 149154048. Its totient is φ = 101270400.

The previous prime is 123744059. The next prime is 123744079. The reversal of 123744071 is 170447321.

It is not a de Polignac number, because 123744071 - 2⁶ = 123744007 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 (123744079) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10085 + ... + 18686.

It is an arithmetic number, because the mean of its divisors is an integer number (9322128).

Almost surely, 2^123744071 is an apocalyptic number.

123744071 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

123744071 is a deficient number, since it is larger than the sum of its proper divisors (25409977).

123744071 is a wasteful number, since it uses less digits than its factorization.

123744071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28822.

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 123744071 is about 11124.0312387192. The cubic root of 123744071 is about 498.3197881005.

The spelling of 123744071 in words is "one hundred twenty-three million, seven hundred forty-four thousand, seventy-one".