158278768 has 10 divisors (see below), whose sum is σ = 306665144. Its totient is φ = 79139376.

The previous prime is 158278763. The next prime is 158278807. The reversal of 158278768 is 867872851.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158278763) by changing a digit.

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 as a sum of consecutive naturals, namely, 4946196 + ... + 4946227.

Almost surely, 2^158278768 is an apocalyptic number.

It is an amenable number.

158278768 is a deficient number, since it is larger than the sum of its proper divisors (148386376).

158278768 is an equidigital number, since it uses as much as digits as its factorization.

158278768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9892431 (or 9892425 counting only the distinct ones).

The product of its digits is 1505280, while the sum is 52.

The square root of 158278768 is about 12580.8889987950. Note that the first 3 decimals coincide. The cubic root of 158278768 is about 540.9297745057.

The spelling of 158278768 in words is "one hundred fifty-eight million, two hundred seventy-eight thousand, seven hundred sixty-eight".