290139 has 8 divisors (see below), whose sum is σ = 409680. Its totient is φ = 182016.

The previous prime is 290137. The next prime is 290141. The reversal of 290139 is 931092.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (290137) and next prime (290141).

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

It is not a de Polignac number, because 290139 - 2¹ = 290137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (290137) 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 7 ways as a sum of consecutive naturals, for example, 2794 + ... + 2895.

It is an arithmetic number, because the mean of its divisors is an integer number (51210).

2²⁹⁰¹³⁹ is an apocalyptic number.

290139 is a deficient number, since it is larger than the sum of its proper divisors (119541).

290139 is a wasteful number, since it uses less digits than its factorization.

290139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5709.

The product of its (nonzero) digits is 486, while the sum is 24.

The square root of 290139 is about 538.6455235124. The cubic root of 290139 is about 66.2016331443.

The spelling of 290139 in words is "two hundred ninety thousand, one hundred thirty-nine".