34772161 has 2 divisors, whose sum is σ = 34772162. Its totient is φ = 34772160.

The previous prime is 34772137. The next prime is 34772207. The reversal of 34772161 is 16127743.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29160000 + 5612161 = 5400^2 + 2369^2 .

It is an emirp because it is prime and its reverse (16127743) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-34772161 is a prime.

It is not a weakly prime, because it can be changed into another prime (34772461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17386080 + 17386081.

It is an arithmetic number, because the mean of its divisors is an integer number (17386081).

Almost surely, 2^34772161 is an apocalyptic number.

It is an amenable number.

34772161 is a deficient number, since it is larger than the sum of its proper divisors (1).

34772161 is an equidigital number, since it uses as much as digits as its factorization.

34772161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7056, while the sum is 31.

The square root of 34772161 is about 5896.7924331792. The cubic root of 34772161 is about 326.3952981399.

The spelling of 34772161 in words is "thirty-four million, seven hundred seventy-two thousand, one hundred sixty-one".