45299521 has 2 divisors, whose sum is σ = 45299522. Its totient is φ = 45299520.

The previous prime is 45299497. The next prime is 45299533. The reversal of 45299521 is 12599254.

45299521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33189121 + 12110400 = 5761^2 + 3480^2 .

It is a cyclic number.

It is not a de Polignac number, because 45299521 - 2¹⁷ = 45168449 is a prime.

It is not a weakly prime, because it can be changed into another prime (45299561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22649760 + 22649761.

It is an arithmetic number, because the mean of its divisors is an integer number (22649761).

Almost surely, 2^45299521 is an apocalyptic number.

It is an amenable number.

45299521 is a deficient number, since it is larger than the sum of its proper divisors (1).

45299521 is an equidigital number, since it uses as much as digits as its factorization.

45299521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32400, while the sum is 37.

The square root of 45299521 is about 6730.4918839562. The cubic root of 45299521 is about 356.4767447048.

The spelling of 45299521 in words is "forty-five million, two hundred ninety-nine thousand, five hundred twenty-one".