135749787 has 4 divisors (see below), whose sum is σ = 180999720. Its totient is φ = 90499856.

The previous prime is 135749767. The next prime is 135749797. The reversal of 135749787 is 787947531.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 135749787 - 2⁸ = 135749531 is a prime.

It is not an unprimeable number, because it can be changed into a prime (135749767) 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, 22624962 + ... + 22624967.

It is an arithmetic number, because the mean of its divisors is an integer number (45249930).

Almost surely, 2^135749787 is an apocalyptic number.

135749787 is a deficient number, since it is larger than the sum of its proper divisors (45249933).

135749787 is an equidigital number, since it uses as much as digits as its factorization.

135749787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45249932.

The product of its digits is 1481760, while the sum is 51.

The square root of 135749787 is about 11651.1710570226. The cubic root of 135749787 is about 513.9407480135.

The spelling of 135749787 in words is "one hundred thirty-five million, seven hundred forty-nine thousand, seven hundred eighty-seven".