45312133 has 2 divisors, whose sum is σ = 45312134. Its totient is φ = 45312132.

The previous prime is 45312119. The next prime is 45312143. The reversal of 45312133 is 33121354.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44930209 + 381924 = 6703^2 + 618^2 .

It is a cyclic number.

It is not a de Polignac number, because 45312133 - 2¹⁷ = 45181061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45312143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22656066 + 22656067.

It is an arithmetic number, because the mean of its divisors is an integer number (22656067).

Almost surely, 2^45312133 is an apocalyptic number.

It is an amenable number.

45312133 is a deficient number, since it is larger than the sum of its proper divisors (1).

45312133 is an equidigital number, since it uses as much as digits as its factorization.

45312133 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1080, while the sum is 22.

The square root of 45312133 is about 6731.4287487873. The cubic root of 45312133 is about 356.5098242858.

Adding to 45312133 its reverse (33121354), we get a palindrome (78433487).

The spelling of 45312133 in words is "forty-five million, three hundred twelve thousand, one hundred thirty-three".