744733121 has 4 divisors (see below), whose sum is σ = 812436144. Its totient is φ = 677030100.

The previous prime is 744733103. The next prime is 744733133. The reversal of 744733121 is 121337447.

744733121 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.

It is a cyclic number.

It is not a de Polignac number, because 744733121 - 2¹⁴ = 744716737 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (744738121) 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, 33851495 + ... + 33851516.

It is an arithmetic number, because the mean of its divisors is an integer number (203109036).

Almost surely, 2^744733121 is an apocalyptic number.

It is an amenable number.

744733121 is a deficient number, since it is larger than the sum of its proper divisors (67703023).

744733121 is a wasteful number, since it uses less digits than its factorization.

744733121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67703022.

The product of its digits is 14112, while the sum is 32.

The square root of 744733121 is about 27289.7988449897. The cubic root of 744733121 is about 906.4285085950.

The spelling of 744733121 in words is "seven hundred forty-four million, seven hundred thirty-three thousand, one hundred twenty-one".