162772873 has 2 divisors, whose sum is σ = 162772874. Its totient is φ = 162772872.

The previous prime is 162772811. The next prime is 162772921. The reversal of 162772873 is 378277261.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 116899344 + 45873529 = 10812^2 + 6773^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-162772873 is a prime.

It is not a weakly prime, because it can be changed into another prime (162772073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81386436 + 81386437.

It is an arithmetic number, because the mean of its divisors is an integer number (81386437).

Almost surely, 2^162772873 is an apocalyptic number.

It is an amenable number.

162772873 is a deficient number, since it is larger than the sum of its proper divisors (1).

162772873 is an equidigital number, since it uses as much as digits as its factorization.

162772873 is an evil number, because the sum of its binary digits is even.

The product of its digits is 197568, while the sum is 43.

The square root of 162772873 is about 12758.2472542274. The cubic root of 162772873 is about 546.0017185650.

The spelling of 162772873 in words is "one hundred sixty-two million, seven hundred seventy-two thousand, eight hundred seventy-three".