290363131 has 4 divisors (see below), whose sum is σ = 295284600. Its totient is φ = 285441664.

The previous prime is 290363113. The next prime is 290363137. The reversal of 290363131 is 131363092.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-290363131 is a prime.

It is a super-2 number, since 2×290363131² = 168621495688246322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 290363131.

It is not an unprimeable number, because it can be changed into a prime (290363137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2460646 + ... + 2460763.

It is an arithmetic number, because the mean of its divisors is an integer number (73821150).

Almost surely, 2^290363131 is an apocalyptic number.

290363131 is a deficient number, since it is larger than the sum of its proper divisors (4921469).

290363131 is an equidigital number, since it uses as much as digits as its factorization.

290363131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4921468.

The product of its (nonzero) digits is 2916, while the sum is 28.

The square root of 290363131 is about 17040.0449236497. The cubic root of 290363131 is about 662.1867557239.

The spelling of 290363131 in words is "two hundred ninety million, three hundred sixty-three thousand, one hundred thirty-one".