754669121 has 4 divisors (see below), whose sum is σ = 754844244. Its totient is φ = 754494000.

The previous prime is 754669103. The next prime is 754669127. The reversal of 754669121 is 121966457.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 121966457 = 47 ⋅2595031.

It can be written as a sum of positive squares in 2 ways, for example, as 672676096 + 81993025 = 25936^2 + 9055^2 .

It is a cyclic number.

It is not a de Polignac number, because 754669121 - 2¹⁴ = 754652737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (754669127) 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, 80930 + ... + 89771.

It is an arithmetic number, because the mean of its divisors is an integer number (188711061).

Almost surely, 2^754669121 is an apocalyptic number.

It is an amenable number.

754669121 is a deficient number, since it is larger than the sum of its proper divisors (175123).

754669121 is a wasteful number, since it uses less digits than its factorization.

754669121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175122.

The product of its digits is 90720, while the sum is 41.

The square root of 754669121 is about 27471.2417083757. The cubic root of 754669121 is about 910.4418097770.

It can be divided in two parts, 7546 and 69121, that added together give a palindrome (76667).

The spelling of 754669121 in words is "seven hundred fifty-four million, six hundred sixty-nine thousand, one hundred twenty-one".