123271982 has 16 divisors (see below), whose sum is σ = 192099600. Its totient is φ = 59256960.

The previous prime is 123271979. The next prime is 123271987. The reversal of 123271982 is 289172321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123271987) 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 7 ways as a sum of consecutive naturals, for example, 9569 + ... + 18387.

It is an arithmetic number, because the mean of its divisors is an integer number (12006225).

Almost surely, 2^123271982 is an apocalyptic number.

123271982 is a deficient number, since it is larger than the sum of its proper divisors (68827618).

123271982 is a wasteful number, since it uses less digits than its factorization.

123271982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9091.

The product of its digits is 12096, while the sum is 35.

The square root of 123271982 is about 11102.7916309368. The cubic root of 123271982 is about 497.6852766478.

The spelling of 123271982 in words is "one hundred twenty-three million, two hundred seventy-one thousand, nine hundred eighty-two".