135284557 has 2 divisors, whose sum is σ = 135284558. Its totient is φ = 135284556.

The previous prime is 135284537. The next prime is 135284563. The reversal of 135284557 is 755482531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73599241 + 61685316 = 8579^2 + 7854^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135284557 is a prime.

It is a super-2 number, since 2×135284557² = 36603822725372498, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135284537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67642278 + 67642279.

It is an arithmetic number, because the mean of its divisors is an integer number (67642279).

Almost surely, 2^135284557 is an apocalyptic number.

It is an amenable number.

135284557 is a deficient number, since it is larger than the sum of its proper divisors (1).

135284557 is an equidigital number, since it uses as much as digits as its factorization.

135284557 is an evil number, because the sum of its binary digits is even.

The product of its digits is 168000, while the sum is 40.

The square root of 135284557 is about 11631.1889761967. The cubic root of 135284557 is about 513.3529648514.

The spelling of 135284557 in words is "one hundred thirty-five million, two hundred eighty-four thousand, five hundred fifty-seven".