135227531 has 2 divisors, whose sum is σ = 135227532. Its totient is φ = 135227530.

The previous prime is 135227513. The next prime is 135227569. The reversal of 135227531 is 135722531.

Together with previous prime (135227513) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135227531 is a prime.

It is a super-2 number, since 2×135227531² = 36572970280711922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 135227494 and 135227503.

It is not a weakly prime, because it can be changed into another prime (135227591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67613765 + 67613766.

It is an arithmetic number, because the mean of its divisors is an integer number (67613766).

Almost surely, 2^135227531 is an apocalyptic number.

135227531 is a deficient number, since it is larger than the sum of its proper divisors (1).

135227531 is an equidigital number, since it uses as much as digits as its factorization.

135227531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6300, while the sum is 29.

The square root of 135227531 is about 11628.7372917269. The cubic root of 135227531 is about 513.2808241206.

The spelling of 135227531 in words is "one hundred thirty-five million, two hundred twenty-seven thousand, five hundred thirty-one".