123839001 has 24 divisors (see below), whose sum is σ = 210153216. Its totient is φ = 69279840.

The previous prime is 123838993. The next prime is 123839003. The reversal of 123839001 is 100938321.

It is not a de Polignac number, because 123839001 - 2³ = 123838993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123839003) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46825 + ... + 49398.

It is an arithmetic number, because the mean of its divisors is an integer number (8756384).

Almost surely, 2^123839001 is an apocalyptic number.

123839001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

123839001 is a deficient number, since it is larger than the sum of its proper divisors (86314215).

123839001 is a wasteful number, since it uses less digits than its factorization.

123839001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96253 (or 96250 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 123839001 is about 11128.2973091125. The cubic root of 123839001 is about 498.4471838496.

The spelling of 123839001 in words is "one hundred twenty-three million, eight hundred thirty-nine thousand, one".