12540034 has 8 divisors (see below), whose sum is σ = 20257020. Its totient is φ = 5787696.

The previous prime is 12539993. The next prime is 12540041. The reversal of 12540034 is 43004521.

12540034 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 2 ways, for example, as 10725625 + 1814409 = 3275^2 + 1347^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 12539993 and 12540020.

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, 241129 + ... + 241180.

Almost surely, 2^12540034 is an apocalyptic number.

12540034 is a deficient number, since it is larger than the sum of its proper divisors (7716986).

12540034 is a wasteful number, since it uses less digits than its factorization.

12540034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482324.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 12540034 is about 3541.1910425731. The cubic root of 12540034 is about 232.3269394695.

Adding to 12540034 its reverse (43004521), we get a palindrome (55544555).

The spelling of 12540034 in words is "twelve million, five hundred forty thousand, thirty-four".