45245139 has 8 divisors (see below), whose sum is σ = 60598272. Its totient is φ = 30027720.

The previous prime is 45245131. The next prime is 45245141. The reversal of 45245139 is 93154254.

45245139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 45245139 - 2³ = 45245131 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (45245131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33147 + ... + 34484.

It is an arithmetic number, because the mean of its divisors is an integer number (7574784).

Almost surely, 2^45245139 is an apocalyptic number.

45245139 is a deficient number, since it is larger than the sum of its proper divisors (15353133).

45245139 is a wasteful number, since it uses less digits than its factorization.

45245139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67857.

The product of its digits is 21600, while the sum is 33.

The square root of 45245139 is about 6726.4506985482. The cubic root of 45245139 is about 356.3340376690.

The spelling of 45245139 in words is "forty-five million, two hundred forty-five thousand, one hundred thirty-nine".