75471161 has 2 divisors, whose sum is σ = 75471162. Its totient is φ = 75471160.

The previous prime is 75471131. The next prime is 75471169. The reversal of 75471161 is 16117457.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67240000 + 8231161 = 8200^2 + 2869^2 .

It is a cyclic number.

It is not a de Polignac number, because 75471161 - 2²⁶ = 8362297 is a prime.

It is a super-2 number, since 2×75471161² = 11391792285375842, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (75471169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37735580 + 37735581.

It is an arithmetic number, because the mean of its divisors is an integer number (37735581).

Almost surely, 2^75471161 is an apocalyptic number.

It is an amenable number.

75471161 is a deficient number, since it is larger than the sum of its proper divisors (1).

75471161 is an equidigital number, since it uses as much as digits as its factorization.

75471161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5880, while the sum is 32.

The square root of 75471161 is about 8687.4139420198. The cubic root of 75471161 is about 422.5975844525.

The spelling of 75471161 in words is "seventy-five million, four hundred seventy-one thousand, one hundred sixty-one".