45717409 has 2 divisors, whose sum is σ = 45717410. Its totient is φ = 45717408.

The previous prime is 45717407. The next prime is 45717421. The reversal of 45717409 is 90471754.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44957025 + 760384 = 6705^2 + 872^2 .

It is a cyclic number.

It is not a de Polignac number, because 45717409 - 2¹ = 45717407 is a prime.

Together with 45717407, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (45717407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22858704 + 22858705.

It is an arithmetic number, because the mean of its divisors is an integer number (22858705).

Almost surely, 2^45717409 is an apocalyptic number.

It is an amenable number.

45717409 is a deficient number, since it is larger than the sum of its proper divisors (1).

45717409 is an equidigital number, since it uses as much as digits as its factorization.

45717409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 35280, while the sum is 37.

The square root of 45717409 is about 6761.4650039766. The cubic root of 45717409 is about 357.5695569419.

The spelling of 45717409 in words is "forty-five million, seven hundred seventeen thousand, four hundred nine".