750000161 has 2 divisors, whose sum is σ = 750000162. Its totient is φ = 750000160.

The previous prime is 750000157. The next prime is 750000221. The reversal of 750000161 is 161000057.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 532732561 + 217267600 = 23081^2 + 14740^2 .

It is an emirp because it is prime and its reverse (161000057) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 750000161 - 2² = 750000157 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (750000961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 375000080 + 375000081.

It is an arithmetic number, because the mean of its divisors is an integer number (375000081).

Almost surely, 2^750000161 is an apocalyptic number.

It is an amenable number.

750000161 is a deficient number, since it is larger than the sum of its proper divisors (1).

750000161 is an equidigital number, since it uses as much as digits as its factorization.

750000161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 210, while the sum is 20.

The square root of 750000161 is about 27386.1308147025. The cubic root of 750000161 is about 908.5603614286.

The spelling of 750000161 in words is "seven hundred fifty million, one hundred sixty-one", and thus it is an aban number.