45019613 has 2 divisors, whose sum is σ = 45019614. Its totient is φ = 45019612.

The previous prime is 45019603. The next prime is 45019627. The reversal of 45019613 is 31691054.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42016324 + 3003289 = 6482^2 + 1733^2 .

It is a cyclic number.

It is not a de Polignac number, because 45019613 - 2¹² = 45015517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45019603) 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, 22509806 + 22509807.

It is an arithmetic number, because the mean of its divisors is an integer number (22509807).

Almost surely, 2^45019613 is an apocalyptic number.

It is an amenable number.

45019613 is a deficient number, since it is larger than the sum of its proper divisors (1).

45019613 is an equidigital number, since it uses as much as digits as its factorization.

45019613 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 45019613 is about 6709.6656399555. The cubic root of 45019613 is about 355.7409980163.

The spelling of 45019613 in words is "forty-five million, nineteen thousand, six hundred thirteen".