135523075 has 6 divisors (see below), whose sum is σ = 168048644. Its totient is φ = 108418440.

The previous prime is 135523051. The next prime is 135523123. The reversal of 135523075 is 570325531.

It is not a de Polignac number, because 135523075 - 2¹¹ = 135521027 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2710437 + ... + 2710486.

Almost surely, 2^135523075 is an apocalyptic number.

135523075 is a deficient number, since it is larger than the sum of its proper divisors (32525569).

135523075 is an equidigital number, since it uses as much as digits as its factorization.

135523075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5420933 (or 5420928 counting only the distinct ones).

The product of its (nonzero) digits is 15750, while the sum is 31.

The square root of 135523075 is about 11641.4378407480. The cubic root of 135523075 is about 513.6544824722.

The spelling of 135523075 in words is "one hundred thirty-five million, five hundred twenty-three thousand, seventy-five".