135696945 has 32 divisors (see below), whose sum is σ = 230699520. Its totient is φ = 67979520.

The previous prime is 135696937. The next prime is 135696947. The reversal of 135696945 is 549696531.

It is a happy number.

It is not a de Polignac number, because 135696945 - 2³ = 135696937 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 135696894 and 135696903.

It is not an unprimeable number, because it can be changed into a prime (135696947) 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, 11880 + ... + 20310.

It is an arithmetic number, because the mean of its divisors is an integer number (7209360).

Almost surely, 2^135696945 is an apocalyptic number.

135696945 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

135696945 is a deficient number, since it is larger than the sum of its proper divisors (95002575).

135696945 is a wasteful number, since it uses less digits than its factorization.

135696945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8505.

The product of its digits is 874800, while the sum is 48.

The square root of 135696945 is about 11648.9031672514. The cubic root of 135696945 is about 513.8740537860.

The spelling of 135696945 in words is "one hundred thirty-five million, six hundred ninety-six thousand, nine hundred forty-five".