135158131 has 2 divisors, whose sum is σ = 135158132. Its totient is φ = 135158130.

The previous prime is 135158129. The next prime is 135158141. The reversal of 135158131 is 131851531.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 135158131 - 2¹ = 135158129 is a prime.

It is a super-2 number, since 2×135158131² = 36535440750826322, which contains 22 as substring.

Together with 135158129, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 135158131.

It is not a weakly prime, because it can be changed into another prime (135158141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67579065 + 67579066.

It is an arithmetic number, because the mean of its divisors is an integer number (67579066).

Almost surely, 2^135158131 is an apocalyptic number.

135158131 is a deficient number, since it is larger than the sum of its proper divisors (1).

135158131 is an equidigital number, since it uses as much as digits as its factorization.

135158131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1800, while the sum is 28.

The square root of 135158131 is about 11625.7529218541. The cubic root of 135158131 is about 513.1930022979.

The spelling of 135158131 in words is "one hundred thirty-five million, one hundred fifty-eight thousand, one hundred thirty-one".