490129 has 4 divisors (see below), whose sum is σ = 507060. Its totient is φ = 473200.

The previous prime is 490121. The next prime is 490151. The reversal of 490129 is 921094.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 419904 + 70225 = 648^2 + 265^2 .

It is a cyclic number.

It is not a de Polignac number, because 490129 - 2³ = 490121 is a prime.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (490121) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 8422 + ... + 8479.

It is an arithmetic number, because the mean of its divisors is an integer number (126765).

2⁴⁹⁰¹²⁹ is an apocalyptic number.

It is an amenable number.

490129 is a deficient number, since it is larger than the sum of its proper divisors (16931).

490129 is a wasteful number, since it uses less digits than its factorization.

490129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16930.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 490129 is about 700.0921367934. The cubic root of 490129 is about 78.8442694039.

It can be divided in two parts, 4901 and 29, that multiplied together give a square (142129 = 377²).

The spelling of 490129 in words is "four hundred ninety thousand, one hundred twenty-nine".