45243542041 has 4 divisors (see below), whose sum is σ = 45317349412. Its totient is φ = 45169734672.

The previous prime is 45243542027. The next prime is 45243542063. The reversal of 45243542041 is 14024534254.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19289043225 + 25954498816 = 138885^2 + 161104^2 .

It is a cyclic number.

It is not a de Polignac number, because 45243542041 - 2⁵ = 45243542009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 45243541988 and 45243542006.

It is not an unprimeable number, because it can be changed into a prime (45243542081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36902766 + ... + 36903991.

It is an arithmetic number, because the mean of its divisors is an integer number (11329337353).

Almost surely, 2^45243542041 is an apocalyptic number.

It is an amenable number.

45243542041 is a deficient number, since it is larger than the sum of its proper divisors (73807371).

45243542041 is an equidigital number, since it uses as much as digits as its factorization.

45243542041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73807370.

The product of its (nonzero) digits is 76800, while the sum is 34.

The spelling of 45243542041 in words is "forty-five billion, two hundred forty-three million, five hundred forty-two thousand, forty-one".