123908066 has 4 divisors (see below), whose sum is σ = 185862102. Its totient is φ = 61954032.

The previous prime is 123908051. The next prime is 123908077. The reversal of 123908066 is 660809321.

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

It can be written as a sum of positive squares in only one way, i.e., 79299025 + 44609041 = 8905^2 + 6679^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30977015 + ... + 30977018.

Almost surely, 2^123908066 is an apocalyptic number.

123908066 is a deficient number, since it is larger than the sum of its proper divisors (61954036).

123908066 is an equidigital number, since it uses as much as digits as its factorization.

123908066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61954035.

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 123908066 is about 11131.4000017967. The cubic root of 123908066 is about 498.5398279461.

The spelling of 123908066 in words is "one hundred twenty-three million, nine hundred eight thousand, sixty-six".