12124738 has 8 divisors (see below), whose sum is σ = 18236988. Its totient is φ = 6045744.

The previous prime is 12124727. The next prime is 12124769. The reversal of 12124738 is 83742121.

It can be written as a sum of positive squares in 2 ways, for example, as 11950849 + 173889 = 3457^2 + 417^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 7381 + ... + 8872.

Almost surely, 2^12124738 is an apocalyptic number.

12124738 is a deficient number, since it is larger than the sum of its proper divisors (6112250).

12124738 is a wasteful number, since it uses less digits than its factorization.

12124738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16628.

The product of its digits is 2688, while the sum is 28.

The square root of 12124738 is about 3482.0594480853. The cubic root of 12124738 is about 229.7333898745.

Adding to 12124738 its reverse (83742121), we get a palindrome (95866859).

It can be divided in two parts, 12 and 124738, that added together give a triangular number (124750 = T₄₉₉).

The spelling of 12124738 in words is "twelve million, one hundred twenty-four thousand, seven hundred thirty-eight".