45386021 has 2 divisors, whose sum is σ = 45386022. Its totient is φ = 45386020.

The previous prime is 45385979. The next prime is 45386051. The reversal of 45386021 is 12068354.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42393121 + 2992900 = 6511^2 + 1730^2 .

It is a cyclic number.

It is not a de Polignac number, because 45386021 - 2¹⁸ = 45123877 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 (45386051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22693010 + 22693011.

It is an arithmetic number, because the mean of its divisors is an integer number (22693011).

Almost surely, 2^45386021 is an apocalyptic number.

It is an amenable number.

45386021 is a deficient number, since it is larger than the sum of its proper divisors (1).

45386021 is an equidigital number, since it uses as much as digits as its factorization.

45386021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 45386021 is about 6736.9147983331. The cubic root of 45386021 is about 356.7034993648.

The spelling of 45386021 in words is "forty-five million, three hundred eighty-six thousand, twenty-one".