123399076 has 6 divisors (see below), whose sum is σ = 215948390. Its totient is φ = 61699536.

The previous prime is 123399061. The next prime is 123399079. The reversal of 123399076 is 670993321.

It can be written as a sum of positive squares in only one way, i.e., 64416676 + 58982400 = 8026^2 + 7680^2 .

It is not an unprimeable number, because it can be changed into a prime (123399079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15424881 + ... + 15424888.

Almost surely, 2^123399076 is an apocalyptic number.

It is an amenable number.

123399076 is a deficient number, since it is larger than the sum of its proper divisors (92549314).

123399076 is a wasteful number, since it uses less digits than its factorization.

123399076 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30849773 (or 30849771 counting only the distinct ones).

The product of its (nonzero) digits is 61236, while the sum is 40.

The square root of 123399076 is about 11108.5136719545. The cubic root of 123399076 is about 497.8562565304.

The spelling of 123399076 in words is "one hundred twenty-three million, three hundred ninety-nine thousand, seventy-six".