159138390 has 64 divisors (see below), whose sum is σ = 391910400. Its totient is φ = 41343744.

The previous prime is 159138379. The next prime is 159138409. The reversal of 159138390 is 93831951.

It is a Curzon number.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 196306 + ... + 197114.

It is an arithmetic number, because the mean of its divisors is an integer number (6123600).

Almost surely, 2^159138390 is an apocalyptic number.

159138390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

159138390 is an abundant number, since it is smaller than the sum of its proper divisors (232772010).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

159138390 is a wasteful number, since it uses less digits than its factorization.

159138390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 981.

The product of its (nonzero) digits is 29160, while the sum is 39.

The square root of 159138390 is about 12615.0065398318. The cubic root of 159138390 is about 541.9072816076.

The spelling of 159138390 in words is "one hundred fifty-nine million, one hundred thirty-eight thousand, three hundred ninety".