135248961 has 8 divisors (see below), whose sum is σ = 180453024. Its totient is φ = 90105440.

The previous prime is 135248929. The next prime is 135248987. The reversal of 135248961 is 169842531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 135248961 - 2⁵ = 135248929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (135248921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9636 + ... + 19061.

It is an arithmetic number, because the mean of its divisors is an integer number (22556628).

Almost surely, 2^135248961 is an apocalyptic number.

It is an amenable number.

135248961 is a deficient number, since it is larger than the sum of its proper divisors (45204063).

135248961 is a wasteful number, since it uses less digits than its factorization.

135248961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30271.

The product of its digits is 51840, while the sum is 39.

The square root of 135248961 is about 11629.6586794282. The cubic root of 135248961 is about 513.3079365164.

The spelling of 135248961 in words is "one hundred thirty-five million, two hundred forty-eight thousand, nine hundred sixty-one".