290191157 has 8 divisors (see below), whose sum is σ = 294132384. Its totient is φ = 286260688.

The previous prime is 290191151. The next prime is 290191159. The reversal of 290191157 is 751191092.

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

It is a cyclic number.

It is not a de Polignac number, because 290191157 - 2¹⁰ = 290190133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (290191151) 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 7 ways as a sum of consecutive naturals, for example, 61898 + ... + 66420.

It is an arithmetic number, because the mean of its divisors is an integer number (36766548).

Almost surely, 2^290191157 is an apocalyptic number.

It is an amenable number.

290191157 is a deficient number, since it is larger than the sum of its proper divisors (3941227).

290191157 is an equidigital number, since it uses as much as digits as its factorization.

290191157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5379.

The product of its (nonzero) digits is 5670, while the sum is 35.

The square root of 290191157 is about 17034.9980041091. The cubic root of 290191157 is about 662.0559983115.

The spelling of 290191157 in words is "two hundred ninety million, one hundred ninety-one thousand, one hundred fifty-seven".