135040531 has 2 divisors, whose sum is σ = 135040532. Its totient is φ = 135040530.

The previous prime is 135040517. The next prime is 135040553.

It is a happy number.

135040531 is nontrivially palindromic in base 10.

It is an a-pointer prime, because the next prime (135040553) can be obtained adding 135040531 to its sum of digits (22).

It is a weak prime.

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 135040531 - 2⁷ = 135040403 is a prime.

It is a super-2 number, since 2×135040531² = 36471890025523922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (135040831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67520265 + 67520266.

It is an arithmetic number, because the mean of its divisors is an integer number (67520266).

Almost surely, 2^135040531 is an apocalyptic number.

135040531 is a deficient number, since it is larger than the sum of its proper divisors (1).

135040531 is an equidigital number, since it uses as much as digits as its factorization.

135040531 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 135040531 is about 11620.6940842619. The cubic root of 135040531 is about 513.0441174106.

The spelling of 135040531 in words is "one hundred thirty-five million, forty thousand, five hundred thirty-one".