135101531 has 2 divisors, whose sum is σ = 135101532. Its totient is φ = 135101530.

The previous prime is 135101521. The next prime is 135101537.

135101531 is nontrivially palindromic in base 10.

135101531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 135101531 - 2¹⁸ = 134839387 is a prime.

It is a super-2 number, since 2×135101531² = 36504847357087922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (135101537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67550765 + 67550766.

It is an arithmetic number, because the mean of its divisors is an integer number (67550766).

Almost surely, 2^135101531 is an apocalyptic number.

135101531 is a deficient number, since it is larger than the sum of its proper divisors (1).

135101531 is an equidigital number, since it uses as much as digits as its factorization.

135101531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 225, while the sum is 20.

The square root of 135101531 is about 11623.3184160118. The cubic root of 135101531 is about 513.1213559005.

The spelling of 135101531 in words is "one hundred thirty-five million, one hundred one thousand, five hundred thirty-one".