45171789 has 8 divisors (see below), whose sum is σ = 64862112. Its totient is φ = 27798000.

The previous prime is 45171787. The next prime is 45171809. The reversal of 45171789 is 98717154.

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

It is not a de Polignac number, because 45171789 - 2¹ = 45171787 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 45171789.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45171787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 579087 + ... + 579164.

It is an arithmetic number, because the mean of its divisors is an integer number (8107764).

Almost surely, 2^45171789 is an apocalyptic number.

It is an amenable number.

45171789 is a deficient number, since it is larger than the sum of its proper divisors (19690323).

45171789 is a wasteful number, since it uses less digits than its factorization.

45171789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1158267.

The product of its digits is 70560, while the sum is 42.

The square root of 45171789 is about 6720.9961315269. The cubic root of 45171789 is about 356.1413743303.

The spelling of 45171789 in words is "forty-five million, one hundred seventy-one thousand, seven hundred eighty-nine".