289290157 has 8 divisors (see below), whose sum is σ = 316824480. Its totient is φ = 262510320.

The previous prime is 289290151. The next prime is 289290187. The reversal of 289290157 is 751092982.

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 289290157 - 2³ = 289290149 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 (289290151) 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, 187819 + ... + 189352.

It is an arithmetic number, because the mean of its divisors is an integer number (39603060).

Almost surely, 2^289290157 is an apocalyptic number.

It is an amenable number.

289290157 is a deficient number, since it is larger than the sum of its proper divisors (27534323).

289290157 is a wasteful number, since it uses less digits than its factorization.

289290157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377243.

The product of its (nonzero) digits is 90720, while the sum is 43.

The square root of 289290157 is about 17008.5318884376. The cubic root of 289290157 is about 661.3700930984.

The spelling of 289290157 in words is "two hundred eighty-nine million, two hundred ninety thousand, one hundred fifty-seven".