135251242152531 has 32 divisors (see below), whose sum is σ = 182307076902720. Its totient is φ = 89183328000000.

The previous prime is 135251242152503. The next prime is 135251242152547.

135251242152531 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 135251242152531 - 2¹⁰ = 135251242151507 is a prime.

It is a super-2 number, since 2×135251242152531² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (135251242152581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1176030031 + ... + 1176145031.

It is an arithmetic number, because the mean of its divisors is an integer number (5697096153210).

Almost surely, 2^{135251242152531} is an apocalyptic number.

135251242152531 is a deficient number, since it is larger than the sum of its proper divisors (47055834750189).

135251242152531 is a wasteful number, since it uses less digits than its factorization.

135251242152531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119047.

The product of its digits is 360000, while the sum is 42.

The spelling of 135251242152531 in words is "one hundred thirty-five trillion, two hundred fifty-one billion, two hundred forty-two million, one hundred fifty-two thousand, five hundred thirty-one".