45017389 has 2 divisors, whose sum is σ = 45017390. Its totient is φ = 45017388.

The previous prime is 45017387. The next prime is 45017393. The reversal of 45017389 is 98371054.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31753225 + 13264164 = 5635^2 + 3642^2 .

It is a cyclic number.

It is not a de Polignac number, because 45017389 - 2¹ = 45017387 is a prime.

Together with 45017387, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45017381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22508694 + 22508695.

It is an arithmetic number, because the mean of its divisors is an integer number (22508695).

Almost surely, 2^45017389 is an apocalyptic number.

It is an amenable number.

45017389 is a deficient number, since it is larger than the sum of its proper divisors (1).

45017389 is an equidigital number, since it uses as much as digits as its factorization.

45017389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 37.

The square root of 45017389 is about 6709.4999068485. The cubic root of 45017389 is about 355.7351399694.

The spelling of 45017389 in words is "forty-five million, seventeen thousand, three hundred eighty-nine".