45121130 has 16 divisors (see below), whose sum is σ = 83413800. Its totient is φ = 17560512.

The previous prime is 45121127. The next prime is 45121157. The reversal of 45121130 is 3112154.

It can be written as a sum of positive squares in 4 ways, for example, as 37662769 + 7458361 = 6137^2 + 2731^2 .

It is a junction number, because it is equal to n+sod(n) for n = 45121099 and 45121108.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60605 + ... + 61344.

Almost surely, 2^45121130 is an apocalyptic number.

45121130 is a deficient number, since it is larger than the sum of its proper divisors (38292670).

45121130 is a wasteful number, since it uses less digits than its factorization.

45121130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121993.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 45121130 is about 6717.2263621230. The cubic root of 45121130 is about 356.0081900653.

Adding to 45121130 its reverse (3112154), we get a palindrome (48233284).

The spelling of 45121130 in words is "forty-five million, one hundred twenty-one thousand, one hundred thirty".