158972768 has 12 divisors (see below), whose sum is σ = 312977700. Its totient is φ = 79486368.

The previous prime is 158972761. The next prime is 158972773. The reversal of 158972768 is 867279851.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158972761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2483918 + ... + 2483981.

It is an arithmetic number, because the mean of its divisors is an integer number (26081475).

Almost surely, 2^158972768 is an apocalyptic number.

It is an amenable number.

158972768 is a deficient number, since it is larger than the sum of its proper divisors (154004932).

158972768 is an equidigital number, since it uses as much as digits as its factorization.

158972768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4967909 (or 4967901 counting only the distinct ones).

The product of its digits is 1693440, while the sum is 53.

The square root of 158972768 is about 12608.4403476401. The cubic root of 158972768 is about 541.7192211362.

The spelling of 158972768 in words is "one hundred fifty-eight million, nine hundred seventy-two thousand, seven hundred sixty-eight".