290134209 has 4 divisors (see below), whose sum is σ = 386845616. Its totient is φ = 193422804.

The previous prime is 290134181. The next prime is 290134217. The reversal of 290134209 is 902431092.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 290134209 - 2²³ = 281745601 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (290134109) 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, 48355699 + ... + 48355704.

It is an arithmetic number, because the mean of its divisors is an integer number (96711404).

Almost surely, 2^290134209 is an apocalyptic number.

It is an amenable number.

290134209 is a deficient number, since it is larger than the sum of its proper divisors (96711407).

290134209 is an equidigital number, since it uses as much as digits as its factorization.

290134209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96711406.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 290134209 is about 17033.3264220469. The cubic root of 290134209 is about 662.0126875137.

The spelling of 290134209 in words is "two hundred ninety million, one hundred thirty-four thousand, two hundred nine".