158946806 has 4 divisors (see below), whose sum is σ = 238420212. Its totient is φ = 79473402.

The previous prime is 158946803. The next prime is 158946811. The reversal of 158946806 is 608649851.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 608649851 = 23 ⋅26463037.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158946803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39736700 + ... + 39736703.

It is an arithmetic number, because the mean of its divisors is an integer number (59605053).

Almost surely, 2^158946806 is an apocalyptic number.

158946806 is a deficient number, since it is larger than the sum of its proper divisors (79473406).

158946806 is an equidigital number, since it uses as much as digits as its factorization.

158946806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79473405.

The product of its (nonzero) digits is 414720, while the sum is 47.

The square root of 158946806 is about 12607.4107571698. The cubic root of 158946806 is about 541.6897299634.

The spelling of 158946806 in words is "one hundred fifty-eight million, nine hundred forty-six thousand, eight hundred six".