75187061 has 2 divisors, whose sum is σ = 75187062. Its totient is φ = 75187060.

The previous prime is 75187043. The next prime is 75187103. The reversal of 75187061 is 16078157.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54302161 + 20884900 = 7369^2 + 4570^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75187061 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75187031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37593530 + 37593531.

It is an arithmetic number, because the mean of its divisors is an integer number (37593531).

Almost surely, 2^75187061 is an apocalyptic number.

It is an amenable number.

75187061 is a deficient number, since it is larger than the sum of its proper divisors (1).

75187061 is an equidigital number, since it uses as much as digits as its factorization.

75187061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11760, while the sum is 35.

The square root of 75187061 is about 8671.0472839214. The cubic root of 75187061 is about 422.0666490271.

The spelling of 75187061 in words is "seventy-five million, one hundred eighty-seven thousand, sixty-one".