123536899 has 2 divisors, whose sum is σ = 123536900. Its totient is φ = 123536898.

The previous prime is 123536801. The next prime is 123536921. The reversal of 123536899 is 998635321.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 123536899 - 2²⁵ = 89982467 is a prime.

It is a super-2 number, since 2×123536899² = 30522730829072402, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (123536099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61768449 + 61768450.

It is an arithmetic number, because the mean of its divisors is an integer number (61768450).

Almost surely, 2^123536899 is an apocalyptic number.

123536899 is a deficient number, since it is larger than the sum of its proper divisors (1).

123536899 is an equidigital number, since it uses as much as digits as its factorization.

123536899 is an evil number, because the sum of its binary digits is even.

The product of its digits is 349920, while the sum is 46.

The square root of 123536899 is about 11114.7154259567. The cubic root of 123536899 is about 498.0415375320.

The spelling of 123536899 in words is "one hundred twenty-three million, five hundred thirty-six thousand, eight hundred ninety-nine".