749033161 has 4 divisors (see below), whose sum is σ = 749174400. Its totient is φ = 748891924.

The previous prime is 749033149. The next prime is 749033179. The reversal of 749033161 is 161330947.

749033161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 161330947 = 23 ⋅7014389.

It is a cyclic number.

It is not a de Polignac number, because 749033161 - 2¹¹ = 749031113 is a prime.

It is a super-2 number, since 2×749033161² = 1122101352555303842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (749033861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62341 + ... + 73378.

It is an arithmetic number, because the mean of its divisors is an integer number (187293600).

Almost surely, 2^749033161 is an apocalyptic number.

It is an amenable number.

749033161 is a deficient number, since it is larger than the sum of its proper divisors (141239).

749033161 is a wasteful number, since it uses less digits than its factorization.

749033161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141238.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 749033161 is about 27368.4701983870. The cubic root of 749033161 is about 908.1697145199.

The spelling of 749033161 in words is "seven hundred forty-nine million, thirty-three thousand, one hundred sixty-one".