123672272 has 20 divisors (see below), whose sum is σ = 241816740. Its totient is φ = 61267968.

The previous prime is 123672271. The next prime is 123672281. The reversal of 123672272 is 272276321.

It can be written as a sum of positive squares in 2 ways, for example, as 76667536 + 47004736 = 8756^2 + 6856^2 .

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123672271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33713 + ... + 37200.

It is an arithmetic number, because the mean of its divisors is an integer number (12090837).

Almost surely, 2^123672272 is an apocalyptic number.

It is an amenable number.

123672272 is a deficient number, since it is larger than the sum of its proper divisors (118144468).

123672272 is a wasteful number, since it uses less digits than its factorization.

123672272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71030 (or 71024 counting only the distinct ones).

The product of its digits is 14112, while the sum is 32.

The square root of 123672272 is about 11120.8035680881. The cubic root of 123672272 is about 498.2233907963.

The spelling of 123672272 in words is "one hundred twenty-three million, six hundred seventy-two thousand, two hundred seventy-two".