135232577 has 4 divisors (see below), whose sum is σ = 135525120. Its totient is φ = 134940036.

The previous prime is 135232567. The next prime is 135232613. The reversal of 135232577 is 775232531.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 135232577 - 2¹² = 135228481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135232567) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145577 + ... + 146502.

It is an arithmetic number, because the mean of its divisors is an integer number (33881280).

Almost surely, 2^135232577 is an apocalyptic number.

It is an amenable number.

135232577 is a deficient number, since it is larger than the sum of its proper divisors (292543).

135232577 is an equidigital number, since it uses as much as digits as its factorization.

135232577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292542.

The product of its digits is 44100, while the sum is 35.

The square root of 135232577 is about 11628.9542522103. The cubic root of 135232577 is about 513.2872083797.

The spelling of 135232577 in words is "one hundred thirty-five million, two hundred thirty-two thousand, five hundred seventy-seven".