162772073 has 2 divisors, whose sum is σ = 162772074. Its totient is φ = 162772072.

The previous prime is 162772037. The next prime is 162772079. The reversal of 162772073 is 370277261.

Together with previous prime (162772037) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 144769024 + 18003049 = 12032^2 + 4243^2 .

It is an emirp because it is prime and its reverse (370277261) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 162772073 - 2¹² = 162767977 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (162772079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81386036 + 81386037.

It is an arithmetic number, because the mean of its divisors is an integer number (81386037).

Almost surely, 2^162772073 is an apocalyptic number.

It is an amenable number.

162772073 is a deficient number, since it is larger than the sum of its proper divisors (1).

162772073 is an equidigital number, since it uses as much as digits as its factorization.

162772073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24696, while the sum is 35.

The square root of 162772073 is about 12758.2159019198. The cubic root of 162772073 is about 546.0008240628. Note that the first 3 decimals are identical.

The spelling of 162772073 in words is "one hundred sixty-two million, seven hundred seventy-two thousand, seventy-three".