45235121 has 4 divisors (see below), whose sum is σ = 45259812. Its totient is φ = 45210432.

The previous prime is 45235111. The next prime is 45235139. The reversal of 45235121 is 12153254.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12153254 = 2 ⋅6076627.

It can be written as a sum of positive squares in 2 ways, for example, as 11826721 + 33408400 = 3439^2 + 5780^2 .

It is a cyclic number.

It is not a de Polignac number, because 45235121 - 2¹⁰ = 45234097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45235111) 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, 9356 + ... + 13341.

It is an arithmetic number, because the mean of its divisors is an integer number (11314953).

Almost surely, 2^45235121 is an apocalyptic number.

It is an amenable number.

45235121 is a deficient number, since it is larger than the sum of its proper divisors (24691).

45235121 is a wasteful number, since it uses less digits than its factorization.

45235121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24690.

The product of its digits is 1200, while the sum is 23.

The square root of 45235121 is about 6725.7059852479. The cubic root of 45235121 is about 356.3077363692.

Adding to 45235121 its reverse (12153254), we get a palindrome (57388375).

The spelling of 45235121 in words is "forty-five million, two hundred thirty-five thousand, one hundred twenty-one".