12749459 has 4 divisors (see below), whose sum is σ = 12820080. Its totient is φ = 12678840.

The previous prime is 12749453. The next prime is 12749489. The reversal of 12749459 is 95494721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 95494721 = 7 ⋅13642103.

It is a cyclic number.

It is not a de Polignac number, because 12749459 - 2¹² = 12745363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12749453) 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, 35039 + ... + 35400.

It is an arithmetic number, because the mean of its divisors is an integer number (3205020).

Almost surely, 2^12749459 is an apocalyptic number.

12749459 is a deficient number, since it is larger than the sum of its proper divisors (70621).

12749459 is an equidigital number, since it uses as much as digits as its factorization.

12749459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70620.

The product of its digits is 90720, while the sum is 41.

The square root of 12749459 is about 3570.6384583153. The cubic root of 12749459 is about 233.6131321490.

The spelling of 12749459 in words is "twelve million, seven hundred forty-nine thousand, four hundred fifty-nine".