744121 has 4 divisors (see below), whose sum is σ = 850432. Its totient is φ = 637812.

The previous prime is 744113. The next prime is 744127. The reversal of 744121 is 121447.

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 not a de Polignac number, because 744121 - 2³ = 744113 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (744127) 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, 53145 + ... + 53158.

It is an arithmetic number, because the mean of its divisors is an integer number (212608).

2⁷⁴⁴¹²¹ is an apocalyptic number.

It is an amenable number.

744121 is a deficient number, since it is larger than the sum of its proper divisors (106311).

744121 is a wasteful number, since it uses less digits than its factorization.

744121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106310.

The product of its digits is 224, while the sum is 19.

The square root of 744121 is about 862.6244837703. The cubic root of 744121 is about 90.6180099246.

Adding to 744121 its reverse (121447), we get a palindrome (865568).

The spelling of 744121 in words is "seven hundred forty-four thousand, one hundred twenty-one", and thus it is an iban number.