40445555141 has 4 divisors (see below), whose sum is σ = 40846006284. Its totient is φ = 40045104000.

The previous prime is 40445555119. The next prime is 40445555147. The reversal of 40445555141 is 14155554404.

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 38437170916 + 2008384225 = 196054^2 + 44815^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40445555141 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40445555095 and 40445555104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40445555147) 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, 200225420 + ... + 200225621.

It is an arithmetic number, because the mean of its divisors is an integer number (10211501571).

Almost surely, 2^40445555141 is an apocalyptic number.

It is an amenable number.

40445555141 is a deficient number, since it is larger than the sum of its proper divisors (400451143).

40445555141 is a wasteful number, since it uses less digits than its factorization.

40445555141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400451142.

The product of its (nonzero) digits is 160000, while the sum is 38.

The spelling of 40445555141 in words is "forty billion, four hundred forty-five million, five hundred fifty-five thousand, one hundred forty-one".