123836501 has 2 divisors, whose sum is σ = 123836502. Its totient is φ = 123836500.

The previous prime is 123836491. The next prime is 123836519. The reversal of 123836501 is 105638321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 74822500 + 49014001 = 8650^2 + 7001^2 .

It is a cyclic number.

It is not a de Polignac number, because 123836501 - 2⁶ = 123836437 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123836561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61918250 + 61918251.

It is an arithmetic number, because the mean of its divisors is an integer number (61918251).

Almost surely, 2^123836501 is an apocalyptic number.

It is an amenable number.

123836501 is a deficient number, since it is larger than the sum of its proper divisors (1).

123836501 is an equidigital number, since it uses as much as digits as its factorization.

123836501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 123836501 is about 11128.1849822871. The cubic root of 123836501 is about 498.4438296926.

The spelling of 123836501 in words is "one hundred twenty-three million, eight hundred thirty-six thousand, five hundred one".