75070161 has 6 divisors (see below), whose sum is σ = 108434690. Its totient is φ = 50046768.

The previous prime is 75070129. The next prime is 75070187. The reversal of 75070161 is 16107057.

It can be written as a sum of positive squares in only one way, i.e., 62110161 + 12960000 = 7881^2 + 3600^2 .

It is not a de Polignac number, because 75070161 - 2⁵ = 75070129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75074161) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4170556 + ... + 4170573.

Almost surely, 2^75070161 is an apocalyptic number.

It is an amenable number.

75070161 is a deficient number, since it is larger than the sum of its proper divisors (33364529).

75070161 is a wasteful number, since it uses less digits than its factorization.

75070161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8341135 (or 8341132 counting only the distinct ones).

The product of its (nonzero) digits is 1470, while the sum is 27.

The square root of 75070161 is about 8664.3038381626. The cubic root of 75070161 is about 421.8477940645.

The spelling of 75070161 in words is "seventy-five million, seventy thousand, one hundred sixty-one".