45041561 has 2 divisors, whose sum is σ = 45041562. Its totient is φ = 45041560.

The previous prime is 45041539. The next prime is 45041569. The reversal of 45041561 is 16514054.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43494025 + 1547536 = 6595^2 + 1244^2 .

It is a cyclic number.

It is not a de Polignac number, because 45041561 - 2¹⁴ = 45025177 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 45041561.

It is not a weakly prime, because it can be changed into another prime (45041569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22520780 + 22520781.

It is an arithmetic number, because the mean of its divisors is an integer number (22520781).

Almost surely, 2^45041561 is an apocalyptic number.

It is an amenable number.

45041561 is a deficient number, since it is larger than the sum of its proper divisors (1).

45041561 is an equidigital number, since it uses as much as digits as its factorization.

45041561 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 45041561 is about 6711.3009916111. The cubic root of 45041561 is about 355.7987990088.

The spelling of 45041561 in words is "forty-five million, forty-one thousand, five hundred sixty-one".