12540894 has 16 divisors (see below), whose sum is σ = 25237632. Its totient is φ = 4154328.

The previous prime is 12540881. The next prime is 12540937. The reversal of 12540894 is 49804521.

It is a congruent number.

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, 5434 + ... + 7389.

It is an arithmetic number, because the mean of its divisors is an integer number (1577352).

Almost surely, 2^12540894 is an apocalyptic number.

12540894 is an abundant number, since it is smaller than the sum of its proper divisors (12696738).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12540894 is a wasteful number, since it uses less digits than its factorization.

12540894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12991.

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 12540894 is about 3541.3124685630. The cubic root of 12540894 is about 232.3322503695.

The spelling of 12540894 in words is "twelve million, five hundred forty thousand, eight hundred ninety-four".