290681149 has 8 divisors (see below), whose sum is σ = 317324448. Its totient is φ = 264074160.

The previous prime is 290681137. The next prime is 290681173. The reversal of 290681149 is 941186092.

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 290681149 - 2⁵ = 290681117 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 (290681179) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9294 + ... + 25840.

It is an arithmetic number, because the mean of its divisors is an integer number (39665556).

Almost surely, 2^290681149 is an apocalyptic number.

It is an amenable number.

290681149 is a deficient number, since it is larger than the sum of its proper divisors (26643299).

290681149 is a wasteful number, since it uses less digits than its factorization.

290681149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18155.

The product of its (nonzero) digits is 31104, while the sum is 40.

The square root of 290681149 is about 17049.3738594706. The cubic root of 290681149 is about 662.4284191797.

The spelling of 290681149 in words is "two hundred ninety million, six hundred eighty-one thousand, one hundred forty-nine".