159121244 has 6 divisors (see below), whose sum is σ = 278462184. Its totient is φ = 79560620.

The previous prime is 159121243. The next prime is 159121271. The reversal of 159121244 is 442121951.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (159121243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19890152 + ... + 19890159.

It is an arithmetic number, because the mean of its divisors is an integer number (46410364).

Almost surely, 2^159121244 is an apocalyptic number.

It is an amenable number.

159121244 is a deficient number, since it is larger than the sum of its proper divisors (119340940).

159121244 is a wasteful number, since it uses less digits than its factorization.

159121244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39780315 (or 39780313 counting only the distinct ones).

The product of its digits is 2880, while the sum is 29.

The square root of 159121244 is about 12614.3269340857. The cubic root of 159121244 is about 541.8878187239.

The spelling of 159121244 in words is "one hundred fifty-nine million, one hundred twenty-one thousand, two hundred forty-four".