45020197 has 8 divisors (see below), whose sum is σ = 45492992. Its totient is φ = 44550000.

The previous prime is 45020189. The next prime is 45020203. The reversal of 45020197 is 79102054.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 45020197 - 2³ = 45020189 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 (45024197) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59572 + ... + 60322.

It is an arithmetic number, because the mean of its divisors is an integer number (5686624).

Almost surely, 2^45020197 is an apocalyptic number.

It is an amenable number.

45020197 is a deficient number, since it is larger than the sum of its proper divisors (472795).

45020197 is a wasteful number, since it uses less digits than its factorization.

45020197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1299.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 45020197 is about 6709.7091591216. The cubic root of 45020197 is about 355.7425362484.

The spelling of 45020197 in words is "forty-five million, twenty thousand, one hundred ninety-seven".