12193730 has 16 divisors (see below), whose sum is σ = 22167864. Its totient is φ = 4828800.

The previous prime is 12193697. The next prime is 12193739. The reversal of 12193730 is 3739121.

12193730 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 9467929 + 2725801 = 3077^2 + 1651^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12193730.

It is not an unprimeable number, because it can be changed into a prime (12193739) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5027 + ... + 7046.

Almost surely, 2^12193730 is an apocalyptic number.

12193730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12193730 is a deficient number, since it is larger than the sum of its proper divisors (9974134).

12193730 is a wasteful number, since it uses less digits than its factorization.

12193730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12181.

The product of its (nonzero) digits is 1134, while the sum is 26.

The square root of 12193730 is about 3491.9521760757. The cubic root of 12193730 is about 230.1683078087.

The spelling of 12193730 in words is "twelve million, one hundred ninety-three thousand, seven hundred thirty".