5129749 has 2 divisors, whose sum is σ = 5129750. Its totient is φ = 5129748.

The previous prime is 5129737. The next prime is 5129779. The reversal of 5129749 is 9479215.

5129749 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2592100 + 2537649 = 1610^2 + 1593^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5129749 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5129779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2564874 + 2564875.

It is an arithmetic number, because the mean of its divisors is an integer number (2564875).

Almost surely, 2^5129749 is an apocalyptic number.

It is an amenable number.

5129749 is a deficient number, since it is larger than the sum of its proper divisors (1).

5129749 is an equidigital number, since it uses as much as digits as its factorization.

5129749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22680, while the sum is 37.

The square root of 5129749 is about 2264.8949202998. The cubic root of 5129749 is about 172.4640995093.

The spelling of 5129749 in words is "five million, one hundred twenty-nine thousand, seven hundred forty-nine".