45221405197 has 4 divisors (see below), whose sum is σ = 45389514780. Its totient is φ = 45053295616.

The previous prime is 45221405189. The next prime is 45221405261. The reversal of 45221405197 is 79150412254.

45221405197 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 16249620676 + 28971784521 = 127474^2 + 170211^2 .

It is a cyclic number.

It is not a de Polignac number, because 45221405197 - 2³ = 45221405189 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 (45221405147) 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, 84054388 + ... + 84054925.

It is an arithmetic number, because the mean of its divisors is an integer number (11347378695).

Almost surely, 2^45221405197 is an apocalyptic number.

It is an amenable number.

45221405197 is a deficient number, since it is larger than the sum of its proper divisors (168109583).

45221405197 is a wasteful number, since it uses less digits than its factorization.

45221405197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168109582.

The product of its (nonzero) digits is 100800, while the sum is 40.

The spelling of 45221405197 in words is "forty-five billion, two hundred twenty-one million, four hundred five thousand, one hundred ninety-seven".