123126196 has 6 divisors (see below), whose sum is σ = 215470850. Its totient is φ = 61563096.

The previous prime is 123126187. The next prime is 123126221. The reversal of 123126196 is 691621321.

It can be written as a sum of positive squares in only one way, i.e., 85303696 + 37822500 = 9236^2 + 6150^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15390771 + ... + 15390778.

Almost surely, 2^123126196 is an apocalyptic number.

It is an amenable number.

123126196 is a deficient number, since it is larger than the sum of its proper divisors (92344654).

123126196 is a wasteful number, since it uses less digits than its factorization.

123126196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30781553 (or 30781551 counting only the distinct ones).

The product of its digits is 3888, while the sum is 31.

The square root of 123126196 is about 11096.2244029219. The cubic root of 123126196 is about 497.4890055902.

The spelling of 123126196 in words is "one hundred twenty-three million, one hundred twenty-six thousand, one hundred ninety-six".