8145490 has 32 divisors (see below), whose sum is σ = 15808320. Its totient is φ = 3011904.

The previous prime is 8145479. The next prime is 8145541. The reversal of 8145490 is 945418.

It is a happy number.

It is an alternating number because its digits alternate between even and odd.

It is a plaindrome in base 12.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 7672 + ... + 8668.

It is an arithmetic number, because the mean of its divisors is an integer number (494010).

Almost surely, 2^8145490 is an apocalyptic number.

8145490 is a deficient number, since it is larger than the sum of its proper divisors (7662830).

8145490 is a wasteful number, since it uses less digits than its factorization.

8145490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1066.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 8145490 is about 2854.0304833691. The cubic root of 8145490 is about 201.2051402655.

The spelling of 8145490 in words is "eight million, one hundred forty-five thousand, four hundred ninety".