75135047 has 8 divisors (see below), whose sum is σ = 81507216. Its totient is φ = 68847552.

The previous prime is 75134989. The next prime is 75135077. The reversal of 75135047 is 74053157.

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 75135047 - 2⁸ = 75134791 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 (75135077) 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, 19313 + ... + 22874.

It is an arithmetic number, because the mean of its divisors is an integer number (10188402).

Almost surely, 2^75135047 is an apocalyptic number.

75135047 is a deficient number, since it is larger than the sum of its proper divisors (6372169).

75135047 is a wasteful number, since it uses less digits than its factorization.

75135047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42337.

The product of its (nonzero) digits is 14700, while the sum is 32.

The square root of 75135047 is about 8668.0474733356. The cubic root of 75135047 is about 421.9692987705.

The spelling of 75135047 in words is "seventy-five million, one hundred thirty-five thousand, forty-seven".