45130331 has 2 divisors, whose sum is σ = 45130332. Its totient is φ = 45130330.

The previous prime is 45130307. The next prime is 45130363. The reversal of 45130331 is 13303154.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 45130331 - 2¹⁴ = 45113947 is a prime.

It is a super-2 number, since 2×45130331² = 4073493552339122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (45130231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22565165 + 22565166.

It is an arithmetic number, because the mean of its divisors is an integer number (22565166).

Almost surely, 2^45130331 is an apocalyptic number.

45130331 is a deficient number, since it is larger than the sum of its proper divisors (1).

45130331 is an equidigital number, since it uses as much as digits as its factorization.

45130331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 45130331 is about 6717.9112081063. The cubic root of 45130331 is about 356.0323872189.

Adding to 45130331 its reverse (13303154), we get a palindrome (58433485).

The spelling of 45130331 in words is "forty-five million, one hundred thirty thousand, three hundred thirty-one".