45353921 has 2 divisors, whose sum is σ = 45353922. Its totient is φ = 45353920.

The previous prime is 45353911. The next prime is 45353933. The reversal of 45353921 is 12935354.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35343025 + 10010896 = 5945^2 + 3164^2 .

It is a cyclic number.

It is not a de Polignac number, because 45353921 - 2⁶ = 45353857 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (45353911) 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, 22676960 + 22676961.

It is an arithmetic number, because the mean of its divisors is an integer number (22676961).

Almost surely, 2^45353921 is an apocalyptic number.

It is an amenable number.

45353921 is a deficient number, since it is larger than the sum of its proper divisors (1).

45353921 is an equidigital number, since it uses as much as digits as its factorization.

45353921 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16200, while the sum is 32.

The square root of 45353921 is about 6734.5319807690. The cubic root of 45353921 is about 356.6193847514.

The spelling of 45353921 in words is "forty-five million, three hundred fifty-three thousand, nine hundred twenty-one".