75619161 has 12 divisors (see below), whose sum is σ = 109312788. Its totient is φ = 50373504.

The previous prime is 75619151. The next prime is 75619169. The reversal of 75619161 is 16191657.

It is a happy number.

75619161 is a `hidden beast` number, since 7 + 561 + 91 + 6 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 29975625 + 45643536 = 5475^2 + 6756^2 .

It is not a de Polignac number, because 75619161 - 2¹⁷ = 75488089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (75619169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13381 + ... + 18173.

It is an arithmetic number, because the mean of its divisors is an integer number (9109399).

Almost surely, 2^75619161 is an apocalyptic number.

It is an amenable number.

75619161 is a deficient number, since it is larger than the sum of its proper divisors (33693627).

75619161 is a wasteful number, since it uses less digits than its factorization.

75619161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6552 (or 6549 counting only the distinct ones).

The product of its digits is 11340, while the sum is 36.

The square root of 75619161 is about 8695.9278400870. The cubic root of 75619161 is about 422.8736439991.

The spelling of 75619161 in words is "seventy-five million, six hundred nineteen thousand, one hundred sixty-one".