490143523 has 8 divisors (see below), whose sum is σ = 501183936. Its totient is φ = 479169600.

The previous prime is 490143509. The next prime is 490143527. The reversal of 490143523 is 325341094.

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

It is a cyclic number.

It is not a de Polignac number, because 490143523 - 2⁵ = 490143491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (490143527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1563 + ... + 31348.

It is an arithmetic number, because the mean of its divisors is an integer number (62647992).

Almost surely, 2^490143523 is an apocalyptic number.

490143523 is a deficient number, since it is larger than the sum of its proper divisors (11040413).

490143523 is a wasteful number, since it uses less digits than its factorization.

490143523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33245.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 490143523 is about 22139.1852379441. The cubic root of 490143523 is about 788.4504814035.

The spelling of 490143523 in words is "four hundred ninety million, one hundred forty-three thousand, five hundred twenty-three".