123789272 has 16 divisors (see below), whose sum is σ = 238378560. Its totient is φ = 60221664.

The previous prime is 123789247. The next prime is 123789301. The reversal of 123789272 is 272987321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 208808 + ... + 209399.

It is an arithmetic number, because the mean of its divisors is an integer number (14898660).

Almost surely, 2^123789272 is an apocalyptic number.

It is an amenable number.

123789272 is a deficient number, since it is larger than the sum of its proper divisors (114589288).

123789272 is a wasteful number, since it uses less digits than its factorization.

123789272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418250 (or 418246 counting only the distinct ones).

The product of its digits is 84672, while the sum is 41.

The square root of 123789272 is about 11126.0627357570. The cubic root of 123789272 is about 498.3804558172.

It can be divided in two parts, 1237 and 89272, that added together give a palindrome (90509).

The spelling of 123789272 in words is "one hundred twenty-three million, seven hundred eighty-nine thousand, two hundred seventy-two".