45381593 has 2 divisors, whose sum is σ = 45381594. Its totient is φ = 45381592.

The previous prime is 45381577. The next prime is 45381631. The reversal of 45381593 is 39518354.

It is a happy number.

It is an a-pointer prime, because the next prime (45381631) can be obtained adding 45381593 to its sum of digits (38).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44662489 + 719104 = 6683^2 + 848^2 .

It is a cyclic number.

It is not a de Polignac number, because 45381593 - 2⁴ = 45381577 is a prime.

It is not a weakly prime, because it can be changed into another prime (45381503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22690796 + 22690797.

It is an arithmetic number, because the mean of its divisors is an integer number (22690797).

Almost surely, 2^45381593 is an apocalyptic number.

It is an amenable number.

45381593 is a deficient number, since it is larger than the sum of its proper divisors (1).

45381593 is an equidigital number, since it uses as much as digits as its factorization.

45381593 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64800, while the sum is 38.

The square root of 45381593 is about 6736.5861532382. The cubic root of 45381593 is about 356.6918986235.

The spelling of 45381593 in words is "forty-five million, three hundred eighty-one thousand, five hundred ninety-three".