159140229394 has 4 divisors (see below), whose sum is σ = 238710344094. Its totient is φ = 79570114696.

The previous prime is 159140229383. The next prime is 159140229427. The reversal of 159140229394 is 493922041951.

It is a happy number.

159140229394 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 493922041951 = 13 ⋅37994003227.

It can be written as a sum of positive squares in only one way, i.e., 101917370025 + 57222859369 = 319245^2 + 239213^2 .

It is a super-2 number, since 2×159140229394² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39785057347 + ... + 39785057350.

Almost surely, 2^159140229394 is an apocalyptic number.

159140229394 is a deficient number, since it is larger than the sum of its proper divisors (79570114700).

159140229394 is an equidigital number, since it uses as much as digits as its factorization.

159140229394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79570114699.

The product of its (nonzero) digits is 699840, while the sum is 49.

The spelling of 159140229394 in words is "one hundred fifty-nine billion, one hundred forty million, two hundred twenty-nine thousand, three hundred ninety-four".