123271776 has 36 divisors (see below), whose sum is σ = 350554932. Its totient is φ = 41090496.

The previous prime is 123271769. The next prime is 123271781. The reversal of 123271776 is 677172321.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 123271776.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 213726 + ... + 214301.

It is an arithmetic number, because the mean of its divisors is an integer number (9737637).

Almost surely, 2^123271776 is an apocalyptic number.

123271776 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

123271776 is an abundant number, since it is smaller than the sum of its proper divisors (227283156).

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

123271776 is a wasteful number, since it uses less digits than its factorization.

123271776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428043 (or 428032 counting only the distinct ones).

The product of its digits is 24696, while the sum is 36.

The square root of 123271776 is about 11102.7823539868. The cubic root of 123271776 is about 497.6849994201.

The spelling of 123271776 in words is "one hundred twenty-three million, two hundred seventy-one thousand, seven hundred seventy-six".