45404561 has 2 divisors, whose sum is σ = 45404562. Its totient is φ = 45404560.

The previous prime is 45404549. The next prime is 45404573. The reversal of 45404561 is 16540454.

It is a balanced prime because it is at equal distance from previous prime (45404549) and next prime (45404573).

It can be written as a sum of positive squares in only one way, i.e., 39450961 + 5953600 = 6281^2 + 2440^2 .

It is a cyclic number.

It is not a de Polignac number, because 45404561 - 2⁶ = 45404497 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (45404521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22702280 + 22702281.

It is an arithmetic number, because the mean of its divisors is an integer number (22702281).

Almost surely, 2^45404561 is an apocalyptic number.

It is an amenable number.

45404561 is a deficient number, since it is larger than the sum of its proper divisors (1).

45404561 is an equidigital number, since it uses as much as digits as its factorization.

45404561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 45404561 is about 6738.2906586166. The cubic root of 45404561 is about 356.7520633825.

The spelling of 45404561 in words is "forty-five million, four hundred four thousand, five hundred sixty-one".