5445468121 has 4 divisors (see below), whose sum is σ = 5459048244. Its totient is φ = 5431888000.

The previous prime is 5445468113. The next prime is 5445468131. The reversal of 5445468121 is 1218645445.

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 5088824896 + 356643225 = 71336^2 + 18885^2 .

It is a cyclic number.

It is not a de Polignac number, because 5445468121 - 2³ = 5445468113 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5445468131) 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, 6789460 + ... + 6790261.

It is an arithmetic number, because the mean of its divisors is an integer number (1364762061).

Almost surely, 2^5445468121 is an apocalyptic number.

It is an amenable number.

5445468121 is a deficient number, since it is larger than the sum of its proper divisors (13580123).

5445468121 is a wasteful number, since it uses less digits than its factorization.

5445468121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13580122.

The product of its digits is 153600, while the sum is 40.

The square root of 5445468121 is about 73793.4151601618. The cubic root of 5445468121 is about 1759.3209459613.

The spelling of 5445468121 in words is "five billion, four hundred forty-five million, four hundred sixty-eight thousand, one hundred twenty-one".