5450140121 has 4 divisors (see below), whose sum is σ = 5463086244. Its totient is φ = 5437194000.

The previous prime is 5450140097. The next prime is 5450140133. The reversal of 5450140121 is 1210410545.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2284840000 + 3165300121 = 47800^2 + 56261^2 .

It is a cyclic number.

It is not a de Polignac number, because 5450140121 - 2⁶ = 5450140057 is a prime.

It is a super-3 number, since 3×5450140121³ (a number of 30 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5450140141) 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, 6472430 + ... + 6473271.

It is an arithmetic number, because the mean of its divisors is an integer number (1365771561).

Almost surely, 2^5450140121 is an apocalyptic number.

It is an amenable number.

5450140121 is a deficient number, since it is larger than the sum of its proper divisors (12946123).

5450140121 is a wasteful number, since it uses less digits than its factorization.

5450140121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12946122.

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 5450140121 is about 73825.0643142287. The cubic root of 5450140121 is about 1759.8239451350.

Adding to 5450140121 its reverse (1210410545), we get a palindrome (6660550666).

The spelling of 5450140121 in words is "five billion, four hundred fifty million, one hundred forty thousand, one hundred twenty-one".