123616499 has 4 divisors (see below), whose sum is σ = 127604160. Its totient is φ = 119628840.

The previous prime is 123616487. The next prime is 123616501. The reversal of 123616499 is 994616321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 123616499 - 2¹² = 123612403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123616459) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1993784 + ... + 1993845.

It is an arithmetic number, because the mean of its divisors is an integer number (31901040).

Almost surely, 2^123616499 is an apocalyptic number.

123616499 is a deficient number, since it is larger than the sum of its proper divisors (3987661).

123616499 is an equidigital number, since it uses as much as digits as its factorization.

123616499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3987660.

The product of its digits is 69984, while the sum is 41.

The square root of 123616499 is about 11118.2956877392. The cubic root of 123616499 is about 498.1484842417.

The spelling of 123616499 in words is "one hundred twenty-three million, six hundred sixteen thousand, four hundred ninety-nine".