12540093 has 8 divisors (see below), whose sum is σ = 17296800. Its totient is φ = 8071728.

The previous prime is 12540049. The next prime is 12540109. The reversal of 12540093 is 39004521.

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

It is not a de Polignac number, because 12540093 - 2⁹ = 12539581 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12540043) 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, 71983 + ... + 72156.

It is an arithmetic number, because the mean of its divisors is an integer number (2162100).

Almost surely, 2^12540093 is an apocalyptic number.

It is an amenable number.

12540093 is a deficient number, since it is larger than the sum of its proper divisors (4756707).

12540093 is a wasteful number, since it uses less digits than its factorization.

12540093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144171.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 12540093 is about 3541.1993730938. The cubic root of 12540093 is about 232.3273038297.

The spelling of 12540093 in words is "twelve million, five hundred forty thousand, ninety-three".