45649493 has 2 divisors, whose sum is σ = 45649494. Its totient is φ = 45649492.

The previous prime is 45649481. The next prime is 45649501. The reversal of 45649493 is 39494654.

It is a happy number.

45649493 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22972849 + 22676644 = 4793^2 + 4762^2 .

It is a cyclic number.

It is not a de Polignac number, because 45649493 - 2²² = 41455189 is a prime.

It is a super-2 number, since 2×45649493² = 4167752422314098, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45649463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22824746 + 22824747.

It is an arithmetic number, because the mean of its divisors is an integer number (22824747).

Almost surely, 2^45649493 is an apocalyptic number.

It is an amenable number.

45649493 is a deficient number, since it is larger than the sum of its proper divisors (1).

45649493 is an equidigital number, since it uses as much as digits as its factorization.

45649493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 466560, while the sum is 44.

The square root of 45649493 is about 6756.4408529935. The cubic root of 45649493 is about 357.3924053932.

The spelling of 45649493 in words is "forty-five million, six hundred forty-nine thousand, four hundred ninety-three".