7512749 has 2 divisors, whose sum is σ = 7512750. Its totient is φ = 7512748.

The previous prime is 7512737. The next prime is 7512751. The reversal of 7512749 is 9472157.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7327849 + 184900 = 2707^2 + 430^2 .

It is an emirp because it is prime and its reverse (9472157) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7512749 - 2⁸ = 7512493 is a prime.

Together with 7512751, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7512709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3756374 + 3756375.

It is an arithmetic number, because the mean of its divisors is an integer number (3756375).

Almost surely, 2^7512749 is an apocalyptic number.

It is an amenable number.

7512749 is a deficient number, since it is larger than the sum of its proper divisors (1).

7512749 is an equidigital number, since it uses as much as digits as its factorization.

7512749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17640, while the sum is 35.

The square root of 7512749 is about 2740.9394374922. The cubic root of 7512749 is about 195.8542318223.

The spelling of 7512749 in words is "seven million, five hundred twelve thousand, seven hundred forty-nine".