75135663 has 12 divisors (see below), whose sum is σ = 111053800. Its totient is φ = 48925296.

The previous prime is 75135659. The next prime is 75135673. The reversal of 75135663 is 36653157.

It is a happy number.

It is not a de Polignac number, because 75135663 - 2² = 75135659 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75135653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 96688 + ... + 97461.

Almost surely, 2^75135663 is an apocalyptic number.

75135663 is a deficient number, since it is larger than the sum of its proper divisors (35918137).

75135663 is a wasteful number, since it uses less digits than its factorization.

75135663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194198 (or 194195 counting only the distinct ones).

The product of its digits is 56700, while the sum is 36.

The square root of 75135663 is about 8668.0830060631. The cubic root of 75135663 is about 421.9704519491.

The spelling of 75135663 in words is "seventy-five million, one hundred thirty-five thousand, six hundred sixty-three".