290130203 has 4 divisors (see below), whose sum is σ = 316505688. Its totient is φ = 263754720.

The previous prime is 290130193. The next prime is 290130221. The reversal of 290130203 is 302031092.

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

It is a cyclic number.

It is not a de Polignac number, because 290130203 - 2⁴ = 290130187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (290130233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13187726 + ... + 13187747.

It is an arithmetic number, because the mean of its divisors is an integer number (79126422).

Almost surely, 2^290130203 is an apocalyptic number.

290130203 is a deficient number, since it is larger than the sum of its proper divisors (26375485).

290130203 is a wasteful number, since it uses less digits than its factorization.

290130203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26375484.

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 290130203 is about 17033.2088286382. The cubic root of 290130203 is about 662.0096406077.

Adding to 290130203 its reverse (302031092), we get a palindrome (592161295).

The spelling of 290130203 in words is "two hundred ninety million, one hundred thirty thousand, two hundred three".