158199509131 has 2 divisors, whose sum is σ = 158199509132. Its totient is φ = 158199509130.

The previous prime is 158199509129. The next prime is 158199509231. The reversal of 158199509131 is 131905991851.

158199509131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 158199509131 - 2¹ = 158199509129 is a prime.

It is a super-2 number, since 2×158199509131² (a number of 23 digits) contains 22 as substring.

Together with 158199509129, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (158199509231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79099754565 + 79099754566.

It is an arithmetic number, because the mean of its divisors is an integer number (79099754566).

Almost surely, 2^158199509131 is an apocalyptic number.

158199509131 is a deficient number, since it is larger than the sum of its proper divisors (1).

158199509131 is an equidigital number, since it uses as much as digits as its factorization.

158199509131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 437400, while the sum is 52.

The spelling of 158199509131 in words is "one hundred fifty-eight billion, one hundred ninety-nine million, five hundred nine thousand, one hundred thirty-one".