135529557 has 32 divisors (see below), whose sum is σ = 195022080. Its totient is φ = 83543040.

The previous prime is 135529553. The next prime is 135529561. The reversal of 135529557 is 755925531.

It is an interprime number because it is at equal distance from previous prime (135529553) and next prime (135529561).

It is not a de Polignac number, because 135529557 - 2² = 135529553 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135529553) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 228253 + ... + 228845.

It is an arithmetic number, because the mean of its divisors is an integer number (6094440).

Almost surely, 2^135529557 is an apocalyptic number.

It is an amenable number.

135529557 is a deficient number, since it is larger than the sum of its proper divisors (59492523).

135529557 is a wasteful number, since it uses less digits than its factorization.

135529557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 733.

The product of its digits is 236250, while the sum is 42.

The square root of 135529557 is about 11641.7162394554. The cubic root of 135529557 is about 513.6626716195.

The spelling of 135529557 in words is "one hundred thirty-five million, five hundred twenty-nine thousand, five hundred fifty-seven".