45810121 has 16 divisors (see below), whose sum is σ = 58354560. Its totient is φ = 35009280.

The previous prime is 45810119. The next prime is 45810131. The reversal of 45810121 is 12101854.

It is a cyclic number.

It is not a de Polignac number, because 45810121 - 2¹ = 45810119 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 45810092 and 45810101.

It is not an unprimeable number, because it can be changed into a prime (45810131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7870 + ... + 12391.

It is an arithmetic number, because the mean of its divisors is an integer number (3647160).

Almost surely, 2^45810121 is an apocalyptic number.

It is an amenable number.

45810121 is a deficient number, since it is larger than the sum of its proper divisors (12544439).

45810121 is a wasteful number, since it uses less digits than its factorization.

45810121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20304.

The product of its (nonzero) digits is 320, while the sum is 22.

The square root of 45810121 is about 6768.3174423190. The cubic root of 45810121 is about 357.8111031810.

Adding to 45810121 its reverse (12101854), we get a palindrome (57911975).

The spelling of 45810121 in words is "forty-five million, eight hundred ten thousand, one hundred twenty-one".