45423641 has 2 divisors, whose sum is σ = 45423642. Its totient is φ = 45423640.

The previous prime is 45423611. The next prime is 45423647. The reversal of 45423641 is 14632454.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39639616 + 5784025 = 6296^2 + 2405^2 .

It is a cyclic number.

It is not a de Polignac number, because 45423641 - 2¹⁰ = 45422617 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (45423647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22711820 + 22711821.

It is an arithmetic number, because the mean of its divisors is an integer number (22711821).

Almost surely, 2^45423641 is an apocalyptic number.

It is an amenable number.

45423641 is a deficient number, since it is larger than the sum of its proper divisors (1).

45423641 is an equidigital number, since it uses as much as digits as its factorization.

45423641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11520, while the sum is 29.

The square root of 45423641 is about 6739.7062992389. The cubic root of 45423641 is about 356.8020280849.

It can be divided in two parts, 45423 and 641, that added together give a palindrome (46064).

The spelling of 45423641 in words is "forty-five million, four hundred twenty-three thousand, six hundred forty-one".