135500501 has 2 divisors, whose sum is σ = 135500502. Its totient is φ = 135500500.

The previous prime is 135500479. The next prime is 135500503. The reversal of 135500501 is 105005531.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 69322276 + 66178225 = 8326^2 + 8135^2 .

It is a cyclic number.

It is not a de Polignac number, because 135500501 - 2¹⁸ = 135238357 is a prime.

Together with 135500503, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (135500503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67750250 + 67750251.

It is an arithmetic number, because the mean of its divisors is an integer number (67750251).

Almost surely, 2^135500501 is an apocalyptic number.

It is an amenable number.

135500501 is a deficient number, since it is larger than the sum of its proper divisors (1).

135500501 is an equidigital number, since it uses as much as digits as its factorization.

135500501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 375, while the sum is 20.

The square root of 135500501 is about 11640.4682465956. The cubic root of 135500501 is about 513.6259611788.

The spelling of 135500501 in words is "one hundred thirty-five million, five hundred thousand, five hundred one".