135141531 has 8 divisors (see below), whose sum is σ = 205929984. Its totient is φ = 77223720.

The previous prime is 135141529. The next prime is 135141533.

135141531 is nontrivially palindromic in base 10.

It is an interprime number because it is at equal distance from previous prime (135141529) and next prime (135141533).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 135141531 - 2¹ = 135141529 is a prime.

It is a super-2 number, since 2×135141531² = 36526466802047922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (135141533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3217635 + ... + 3217676.

It is an arithmetic number, because the mean of its divisors is an integer number (25741248).

Almost surely, 2^135141531 is an apocalyptic number.

135141531 is a deficient number, since it is larger than the sum of its proper divisors (70788453).

135141531 is an equidigital number, since it uses as much as digits as its factorization.

135141531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6435321.

The product of its digits is 900, while the sum is 24.

The square root of 135141531 is about 11625.0389676766. The cubic root of 135141531 is about 513.1719914702.

The spelling of 135141531 in words is "one hundred thirty-five million, one hundred forty-one thousand, five hundred thirty-one".