8145487 has 4 divisors (see below), whose sum is σ = 9309136. Its totient is φ = 6981840.

The previous prime is 8145479. The next prime is 8145541. The reversal of 8145487 is 7845418.

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 8145487 - 2³ = 8145479 is a prime.

It is a super-3 number, since 3×8145487³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8145407) 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 3 ways as a sum of consecutive naturals, for example, 581814 + ... + 581827.

It is an arithmetic number, because the mean of its divisors is an integer number (2327284).

Almost surely, 2^8145487 is an apocalyptic number.

8145487 is a deficient number, since it is larger than the sum of its proper divisors (1163649).

8145487 is a wasteful number, since it uses less digits than its factorization.

8145487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1163648.

The product of its digits is 35840, while the sum is 37.

The square root of 8145487 is about 2854.0299577965. The cubic root of 8145487 is about 201.2051155641.

The spelling of 8145487 in words is "eight million, one hundred forty-five thousand, four hundred eighty-seven".