123493712 has 20 divisors (see below), whose sum is σ = 253344276. Its totient is φ = 58114560.

The previous prime is 123493709. The next prime is 123493717. The reversal of 123493712 is 217394321.

It can be written as a sum of positive squares in 2 ways, for example, as 83247376 + 40246336 = 9124^2 + 6344^2 .

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123493717) 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, 226739 + ... + 227282.

Almost surely, 2^123493712 is an apocalyptic number.

It is an amenable number.

123493712 is an abundant number, since it is smaller than the sum of its proper divisors (129850564).

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

123493712 is a wasteful number, since it uses less digits than its factorization.

123493712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454046 (or 454040 counting only the distinct ones).

The product of its digits is 9072, while the sum is 32.

The square root of 123493712 is about 11112.7724713503. The cubic root of 123493712 is about 497.9834943428.

It can be divided in two parts, 12349 and 3712, that added together give a palindrome (16061).

The spelling of 123493712 in words is "one hundred twenty-three million, four hundred ninety-three thousand, seven hundred twelve".