45198079 has 4 divisors (see below), whose sum is σ = 45598176. Its totient is φ = 44797984.

The previous prime is 45198077. The next prime is 45198089. The reversal of 45198079 is 97089154.

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

It is a cyclic number.

It is not a de Polignac number, because 45198079 - 2¹ = 45198077 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 (45198077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 199879 + ... + 200104.

It is an arithmetic number, because the mean of its divisors is an integer number (11399544).

Almost surely, 2^45198079 is an apocalyptic number.

45198079 is a deficient number, since it is larger than the sum of its proper divisors (400097).

45198079 is a wasteful number, since it uses less digits than its factorization.

45198079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400096.

The product of its (nonzero) digits is 90720, while the sum is 43.

The square root of 45198079 is about 6722.9516583120. The cubic root of 45198079 is about 356.2104524069.

The spelling of 45198079 in words is "forty-five million, one hundred ninety-eight thousand, seventy-nine".