75135161 has 4 divisors (see below), whose sum is σ = 75358452. Its totient is φ = 74911872.

The previous prime is 75135157. The next prime is 75135173. The reversal of 75135161 is 16153157.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16153157 = 887 ⋅18211.

It can be written as a sum of positive squares in 2 ways, for example, as 55279225 + 19855936 = 7435^2 + 4456^2 .

It is a cyclic number.

It is not a de Polignac number, because 75135161 - 2² = 75135157 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75135131) 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, 111140 + ... + 111813.

It is an arithmetic number, because the mean of its divisors is an integer number (18839613).

Almost surely, 2^75135161 is an apocalyptic number.

It is an amenable number.

75135161 is a deficient number, since it is larger than the sum of its proper divisors (223291).

75135161 is a wasteful number, since it uses less digits than its factorization.

75135161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223290.

The product of its digits is 3150, while the sum is 29.

The square root of 75135161 is about 8668.0540492085. The cubic root of 75135161 is about 421.9695121839.

The spelling of 75135161 in words is "seventy-five million, one hundred thirty-five thousand, one hundred sixty-one".