159046906 has 4 divisors (see below), whose sum is σ = 238570362. Its totient is φ = 79523452.

The previous prime is 159046873. The next prime is 159046907. The reversal of 159046906 is 609640951.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 609640951 = 17389 ⋅35059.

It can be written as a sum of positive squares in only one way, i.e., 158986881 + 60025 = 12609^2 + 245^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (159046907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39761725 + ... + 39761728.

Almost surely, 2^159046906 is an apocalyptic number.

159046906 is a deficient number, since it is larger than the sum of its proper divisors (79523456).

159046906 is an equidigital number, since it uses as much as digits as its factorization.

159046906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79523455.

The product of its (nonzero) digits is 58320, while the sum is 40.

The square root of 159046906 is about 12611.3800196489. The cubic root of 159046906 is about 541.8034194939.

The spelling of 159046906 in words is "one hundred fifty-nine million, forty-six thousand, nine hundred six".