159872290 has 16 divisors (see below), whose sum is σ = 287983800. Its totient is φ = 63901440.

The previous prime is 159872281. The next prime is 159872311. The reversal of 159872290 is 92278951.

It can be written as a sum of positive squares in 4 ways, for example, as 121022001 + 38850289 = 11001^2 + 6233^2 .

It is a nialpdrome in base 16.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10330 + ... + 20650.

Almost surely, 2^159872290 is an apocalyptic number.

159872290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

159872290 is a deficient number, since it is larger than the sum of its proper divisors (128111510).

159872290 is a wasteful number, since it uses less digits than its factorization.

159872290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11877.

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

The square root of 159872290 is about 12644.0614519228. The cubic root of 159872290 is about 542.7390439242.

The spelling of 159872290 in words is "one hundred fifty-nine million, eight hundred seventy-two thousand, two hundred ninety".