123772206 has 64 divisors (see below), whose sum is σ = 270293760. Its totient is φ = 37639680.

The previous prime is 123772199. The next prime is 123772219. The reversal of 123772206 is 602277321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 788280 + ... + 788436.

It is an arithmetic number, because the mean of its divisors is an integer number (4223340).

Almost surely, 2^123772206 is an apocalyptic number.

123772206 is an abundant number, since it is smaller than the sum of its proper divisors (146521554).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123772206 is a wasteful number, since it uses less digits than its factorization.

123772206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369.

The product of its (nonzero) digits is 7056, while the sum is 30.

The square root of 123772206 is about 11125.2957713492. The cubic root of 123772206 is about 498.3575519699.

The spelling of 123772206 in words is "one hundred twenty-three million, seven hundred seventy-two thousand, two hundred six".