159897741 has 8 divisors (see below), whose sum is σ = 213256320. Its totient is φ = 106568832.

The previous prime is 159897739. The next prime is 159897743. The reversal of 159897741 is 147798951.

It is a happy number.

159897741 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (159897739) and next prime (159897743).

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

It is not a de Polignac number, because 159897741 - 2¹ = 159897739 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159897743) 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, 13980 + ... + 22698.

It is an arithmetic number, because the mean of its divisors is an integer number (26657040).

Almost surely, 2^159897741 is an apocalyptic number.

It is an amenable number.

159897741 is a deficient number, since it is larger than the sum of its proper divisors (53358579).

159897741 is an equidigital number, since it uses as much as digits as its factorization.

159897741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14835.

The product of its digits is 635040, while the sum is 51.

The square root of 159897741 is about 12645.0678527242. The cubic root of 159897741 is about 542.7678429914.

The spelling of 159897741 in words is "one hundred fifty-nine million, eight hundred ninety-seven thousand, seven hundred forty-one".