123764199 has 64 divisors (see below), whose sum is σ = 200672640. Its totient is φ = 67092480.

The previous prime is 123764189. The next prime is 123764213. The reversal of 123764199 is 991467321.

It is not a de Polignac number, because 123764199 - 2¹⁵ = 123731431 is a prime.

It is a super-2 number, since 2×123764199² = 30635153908223202, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 123764199.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123764129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 788229 + ... + 788385.

It is an arithmetic number, because the mean of its divisors is an integer number (3135510).

Almost surely, 2^123764199 is an apocalyptic number.

123764199 is a deficient number, since it is larger than the sum of its proper divisors (76908441).

123764199 is a wasteful number, since it uses less digits than its factorization.

With its successor (123764200) it forms a Ruth-Aaron pair, since the sum of their distinct prime factors is the same (260).

123764199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260.

The product of its digits is 81648, while the sum is 42.

The square root of 123764199 is about 11124.9359099278. The cubic root of 123764199 is about 498.3468052519.

The spelling of 123764199 in words is "one hundred twenty-three million, seven hundred sixty-four thousand, one hundred ninety-nine".