158728267 has 8 divisors (see below), whose sum is σ = 167271840. Its totient is φ = 150321600.

The previous prime is 158728243. The next prime is 158728291. The reversal of 158728267 is 762827851.

It is an interprime number because it is at equal distance from previous prime (158728243) and next prime (158728291).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-158728267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (158728217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31842 + ... + 36487.

It is an arithmetic number, because the mean of its divisors is an integer number (20908980).

Almost surely, 2^158728267 is an apocalyptic number.

158728267 is a deficient number, since it is larger than the sum of its proper divisors (8543573).

158728267 is a wasteful number, since it uses less digits than its factorization.

158728267 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68453.

The product of its digits is 376320, while the sum is 46.

The square root of 158728267 is about 12598.7406910373. The cubic root of 158728267 is about 541.4413562447.

The spelling of 158728267 in words is "one hundred fifty-eight million, seven hundred twenty-eight thousand, two hundred sixty-seven".