45379309 has 2 divisors, whose sum is σ = 45379310. Its totient is φ = 45379308.

The previous prime is 45379283. The next prime is 45379339. The reversal of 45379309 is 90397354.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32741284 + 12638025 = 5722^2 + 3555^2 .

It is a cyclic number.

It is not a de Polignac number, because 45379309 - 2¹¹ = 45377261 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45379339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22689654 + 22689655.

It is an arithmetic number, because the mean of its divisors is an integer number (22689655).

Almost surely, 2^45379309 is an apocalyptic number.

It is an amenable number.

45379309 is a deficient number, since it is larger than the sum of its proper divisors (1).

45379309 is an equidigital number, since it uses as much as digits as its factorization.

45379309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 102060, while the sum is 40.

The square root of 45379309 is about 6736.4166290395. The cubic root of 45379309 is about 356.6859145677.

The spelling of 45379309 in words is "forty-five million, three hundred seventy-nine thousand, three hundred nine".