45350621 has 4 divisors (see below), whose sum is σ = 45364092. Its totient is φ = 45337152.

The previous prime is 45350609. The next prime is 45350623. The reversal of 45350621 is 12605354.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 2592100 + 42758521 = 1610^2 + 6539^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45350621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45350623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3221 + ... + 10053.

It is an arithmetic number, because the mean of its divisors is an integer number (11341023).

Almost surely, 2^45350621 is an apocalyptic number.

It is an amenable number.

45350621 is a deficient number, since it is larger than the sum of its proper divisors (13471).

45350621 is an equidigital number, since it uses as much as digits as its factorization.

45350621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13470.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 45350621 is about 6734.2869704223. The cubic root of 45350621 is about 356.6107352051.

Adding to 45350621 its reverse (12605354), we get a palindrome (57955975).

The spelling of 45350621 in words is "forty-five million, three hundred fifty thousand, six hundred twenty-one".