45171642 has 8 divisors (see below), whose sum is σ = 90343296. Its totient is φ = 15057212.

The previous prime is 45171617. The next prime is 45171667. The reversal of 45171642 is 24617154.

45171642 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (45171617) and next prime (45171667).

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

45171642 is an admirable number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 3764298 + ... + 3764309.

It is an arithmetic number, because the mean of its divisors is an integer number (11292912).

Almost surely, 2^45171642 is an apocalyptic number.

45171642 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45171642 is a wasteful number, since it uses less digits than its factorization.

45171642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7528612.

The product of its digits is 6720, while the sum is 30.

The square root of 45171642 is about 6720.9851956391. The cubic root of 45171642 is about 356.1409880063.

Adding to 45171642 its reverse (24617154), we get a palindrome (69788796).

The spelling of 45171642 in words is "forty-five million, one hundred seventy-one thousand, six hundred forty-two".