45451541 has 2 divisors, whose sum is σ = 45451542. Its totient is φ = 45451540.

The previous prime is 45451537. The next prime is 45451579. The reversal of 45451541 is 14515454.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41550916 + 3900625 = 6446^2 + 1975^2 .

It is a cyclic number.

It is not a de Polignac number, because 45451541 - 2² = 45451537 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45459541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22725770 + 22725771.

It is an arithmetic number, because the mean of its divisors is an integer number (22725771).

Almost surely, 2^45451541 is an apocalyptic number.

It is an amenable number.

45451541 is a deficient number, since it is larger than the sum of its proper divisors (1).

45451541 is an equidigital number, since it uses as much as digits as its factorization.

45451541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8000, while the sum is 29.

The square root of 45451541 is about 6741.7758046378. The cubic root of 45451541 is about 356.8750644960.

Adding to 45451541 its reverse (14515454), we get a palindrome (59966995).

It can be divided in two parts, 4 and 5451541, that added together give a palindrome (5451545).

The spelling of 45451541 in words is "forty-five million, four hundred fifty-one thousand, five hundred forty-one".