158387111 has 2 divisors, whose sum is σ = 158387112. Its totient is φ = 158387110.

The previous prime is 158387107. The next prime is 158387123. The reversal of 158387111 is 111783851.

It is a weak prime.

It is an emirp because it is prime and its reverse (111783851) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 158387111 - 2² = 158387107 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (158387611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79193555 + 79193556.

It is an arithmetic number, because the mean of its divisors is an integer number (79193556).

Almost surely, 2^158387111 is an apocalyptic number.

158387111 is a deficient number, since it is larger than the sum of its proper divisors (1).

158387111 is an equidigital number, since it uses as much as digits as its factorization.

158387111 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6720, while the sum is 35.

The square root of 158387111 is about 12585.1941184870. The cubic root of 158387111 is about 541.0531698466.

The spelling of 158387111 in words is "one hundred fifty-eight million, three hundred eighty-seven thousand, one hundred eleven".