45342389 has 2 divisors, whose sum is σ = 45342390. Its totient is φ = 45342388.

The previous prime is 45342347. The next prime is 45342403. The reversal of 45342389 is 98324354.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40576900 + 4765489 = 6370^2 + 2183^2 .

It is a cyclic number.

It is not a de Polignac number, because 45342389 - 2¹⁶ = 45276853 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45342329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22671194 + 22671195.

It is an arithmetic number, because the mean of its divisors is an integer number (22671195).

Almost surely, 2^45342389 is an apocalyptic number.

It is an amenable number.

45342389 is a deficient number, since it is larger than the sum of its proper divisors (1).

45342389 is an equidigital number, since it uses as much as digits as its factorization.

45342389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 103680, while the sum is 38.

The square root of 45342389 is about 6733.6757421189. The cubic root of 45342389 is about 356.5891566898.

The spelling of 45342389 in words is "forty-five million, three hundred forty-two thousand, three hundred eighty-nine".