12540353 has 8 divisors (see below), whose sum is σ = 14471808. Its totient is φ = 10643904.

The previous prime is 12540347. The next prime is 12540371. The reversal of 12540353 is 35304521.

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

It is a cyclic number.

It is not a de Polignac number, because 12540353 - 2¹⁸ = 12278209 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12540653) 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, 7976 + ... + 9417.

It is an arithmetic number, because the mean of its divisors is an integer number (1808976).

Almost surely, 2^12540353 is an apocalyptic number.

It is an amenable number.

12540353 is a deficient number, since it is larger than the sum of its proper divisors (1931455).

12540353 is a wasteful number, since it uses less digits than its factorization.

12540353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17503.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 12540353 is about 3541.2360836296. The cubic root of 12540353 is about 232.3289094712.

Adding to 12540353 its reverse (35304521), we get a palindrome (47844874).

The spelling of 12540353 in words is "twelve million, five hundred forty thousand, three hundred fifty-three".