45187571 has 24 divisors (see below), whose sum is σ = 55860000. Its totient is φ = 36241920.

The previous prime is 45187561. The next prime is 45187573. The reversal of 45187571 is 17578154.

It is a happy number.

45187571 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 45187571 - 2⁶ = 45187507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45187573) 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 23 ways as a sum of consecutive naturals, for example, 35555 + ... + 36803.

It is an arithmetic number, because the mean of its divisors is an integer number (2327500).

Almost surely, 2^45187571 is an apocalyptic number.

45187571 is a deficient number, since it is larger than the sum of its proper divisors (10672429).

45187571 is a wasteful number, since it uses less digits than its factorization.

45187571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1307 (or 1296 counting only the distinct ones).

The product of its digits is 39200, while the sum is 38.

The square root of 45187571 is about 6722.1701109091. The cubic root of 45187571 is about 356.1828454110.

The spelling of 45187571 in words is "forty-five million, one hundred eighty-seven thousand, five hundred seventy-one".