158728607 has 2 divisors, whose sum is σ = 158728608. Its totient is φ = 158728606.

The previous prime is 158728579. The next prime is 158728621. The reversal of 158728607 is 706827851.

158728607 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-158728607 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (158728627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79364303 + 79364304.

It is an arithmetic number, because the mean of its divisors is an integer number (79364304).

Almost surely, 2^158728607 is an apocalyptic number.

158728607 is a deficient number, since it is larger than the sum of its proper divisors (1).

158728607 is an equidigital number, since it uses as much as digits as its factorization.

158728607 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 188160, while the sum is 44.

The square root of 158728607 is about 12598.7541844422. The cubic root of 158728607 is about 541.4417428382.

The spelling of 158728607 in words is "one hundred fifty-eight million, seven hundred twenty-eight thousand, six hundred seven".