159941394 has 24 divisors (see below), whose sum is σ = 351289692. Its totient is φ = 52583040.

The previous prime is 159941371. The next prime is 159941401. The reversal of 159941394 is 493149951.

It can be written as a sum of positive squares in 2 ways, for example, as 159896025 + 45369 = 12645^2 + 213^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 59547 + ... + 62174.

Almost surely, 2^159941394 is an apocalyptic number.

159941394 is an abundant number, since it is smaller than the sum of its proper divisors (191348298).

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

159941394 is a wasteful number, since it uses less digits than its factorization.

159941394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121802 (or 121799 counting only the distinct ones).

The product of its digits is 174960, while the sum is 45.

The square root of 159941394 is about 12646.7938229418. The cubic root of 159941394 is about 542.8172314082.

It can be divided in two parts, 15 and 9941394, that added together give a square (9941409 = 3153²).

The spelling of 159941394 in words is "one hundred fifty-nine million, nine hundred forty-one thousand, three hundred ninety-four".