749899133 has 2 divisors, whose sum is σ = 749899134. Its totient is φ = 749899132.

The previous prime is 749899127. The next prime is 749899177. The reversal of 749899133 is 331998947.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 601132324 + 148766809 = 24518^2 + 12197^2 .

It is a cyclic number.

It is not a de Polignac number, because 749899133 - 2²⁸ = 481463677 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (749899103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 374949566 + 374949567.

It is an arithmetic number, because the mean of its divisors is an integer number (374949567).

Almost surely, 2^749899133 is an apocalyptic number.

It is an amenable number.

749899133 is a deficient number, since it is larger than the sum of its proper divisors (1).

749899133 is an equidigital number, since it uses as much as digits as its factorization.

749899133 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1469664, while the sum is 53.

The square root of 749899133 is about 27384.2862422960. The cubic root of 749899133 is about 908.5195640338.

The spelling of 749899133 in words is "seven hundred forty-nine million, eight hundred ninety-nine thousand, one hundred thirty-three".