12500993 has 4 divisors (see below), whose sum is σ = 13158960. Its totient is φ = 11843028.

The previous prime is 12500989. The next prime is 12501019. The reversal of 12500993 is 39900521.

12500993 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, and also an emirpimes, since its reverse is a distinct semiprime: 39900521 = 1567 ⋅25463.

It is a cyclic number.

It is not a de Polignac number, because 12500993 - 2² = 12500989 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12500953) 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, 328955 + ... + 328992.

It is an arithmetic number, because the mean of its divisors is an integer number (3289740).

It is a Proth number, since it is equal to 763 ⋅ 2¹⁴ + 1 and 763 < 2¹⁴.

Almost surely, 2^12500993 is an apocalyptic number.

It is an amenable number.

12500993 is a deficient number, since it is larger than the sum of its proper divisors (657967).

12500993 is an equidigital number, since it uses as much as digits as its factorization.

12500993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 657966.

The product of its (nonzero) digits is 2430, while the sum is 29.

The square root of 12500993 is about 3535.6743345506. The cubic root of 12500993 is about 232.0855869815.

The spelling of 12500993 in words is "twelve million, five hundred thousand, nine hundred ninety-three".