123650039 has 2 divisors, whose sum is σ = 123650040. Its totient is φ = 123650038.

The previous prime is 123650029. The next prime is 123650063. The reversal of 123650039 is 930056321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 123650039 - 2¹² = 123645943 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 123649993 and 123650020.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123650029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61825019 + 61825020.

It is an arithmetic number, because the mean of its divisors is an integer number (61825020).

Almost surely, 2^123650039 is an apocalyptic number.

123650039 is a deficient number, since it is larger than the sum of its proper divisors (1).

123650039 is an equidigital number, since it uses as much as digits as its factorization.

123650039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4860, while the sum is 29.

The square root of 123650039 is about 11119.8039101416. The cubic root of 123650039 is about 498.1935332156.

The spelling of 123650039 in words is "one hundred twenty-three million, six hundred fifty thousand, thirty-nine".