12501789 has 4 divisors (see below), whose sum is σ = 16669056. Its totient is φ = 8334524.

The previous prime is 12501779. The next prime is 12501793. The reversal of 12501789 is 98710521.

12501789 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12501789 - 2¹³ = 12493597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12501739) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2083629 + ... + 2083634.

It is an arithmetic number, because the mean of its divisors is an integer number (4167264).

Almost surely, 2^12501789 is an apocalyptic number.

It is an amenable number.

12501789 is a deficient number, since it is larger than the sum of its proper divisors (4167267).

12501789 is an equidigital number, since it uses as much as digits as its factorization.

12501789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4167266.

The product of its (nonzero) digits is 5040, while the sum is 33.

The square root of 12501789 is about 3535.7868996873. The cubic root of 12501789 is about 232.0905128890.

The spelling of 12501789 in words is "twelve million, five hundred one thousand, seven hundred eighty-nine".