749081 has 2 divisors, whose sum is σ = 749082. Its totient is φ = 749080.

The previous prime is 749069. The next prime is 749083. The reversal of 749081 is 180947.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 490000 + 259081 = 700^2 + 509^2 .

It is a cyclic number.

It is not a de Polignac number, because 749081 - 2¹⁰ = 748057 is a prime.

It is a super-2 number, since 2×749081² = 1122244689122, which contains 22 as substring.

Together with 749083, 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 (749083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 374540 + 374541.

It is an arithmetic number, because the mean of its divisors is an integer number (374541).

2⁷⁴⁹⁰⁸¹ is an apocalyptic number.

It is an amenable number.

749081 is a deficient number, since it is larger than the sum of its proper divisors (1).

749081 is an equidigital number, since it uses as much as digits as its factorization.

749081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 749081 is about 865.4946562516. The cubic root of 749081 is about 90.8189048335.

The spelling of 749081 in words is "seven hundred forty-nine thousand, eighty-one".