749915249 has 2 divisors, whose sum is σ = 749915250. Its totient is φ = 749915248.

The previous prime is 749915219. The next prime is 749915267. The reversal of 749915249 is 942519947.

749915249 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 616628224 + 133287025 = 24832^2 + 11545^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-749915249 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 749915197 and 749915206.

It is not a weakly prime, because it can be changed into another prime (749915219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 374957624 + 374957625.

It is an arithmetic number, because the mean of its divisors is an integer number (374957625).

Almost surely, 2^749915249 is an apocalyptic number.

It is an amenable number.

749915249 is a deficient number, since it is larger than the sum of its proper divisors (1).

749915249 is an equidigital number, since it uses as much as digits as its factorization.

749915249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 816480, while the sum is 50.

The square root of 749915249 is about 27384.5804970608. The cubic root of 749915249 is about 908.5260722853.

The spelling of 749915249 in words is "seven hundred forty-nine million, nine hundred fifteen thousand, two hundred forty-nine".