12261730 has 16 divisors (see below), whose sum is σ = 23769144. Its totient is φ = 4527360.

The previous prime is 12261713. The next prime is 12261791. The reversal of 12261730 is 3716221.

12261730 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 10543009 + 1718721 = 3247^2 + 1311^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47031 + ... + 47290.

Almost surely, 2^12261730 is an apocalyptic number.

12261730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12261730 is a deficient number, since it is larger than the sum of its proper divisors (11507414).

12261730 is a wasteful number, since it uses less digits than its factorization.

12261730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94341.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 12261730 is about 3501.6753133322. The cubic root of 12261730 is about 230.5953699299.

Adding to 12261730 its reverse (3716221), we get a palindrome (15977951).

The spelling of 12261730 in words is "twelve million, two hundred sixty-one thousand, seven hundred thirty".