162772906 has 8 divisors (see below), whose sum is σ = 244220580. Its totient is φ = 81366048.

The previous prime is 162772873. The next prime is 162772921. The reversal of 162772906 is 609277261.

It can be written as a sum of positive squares in 2 ways, for example, as 144360225 + 18412681 = 12015^2 + 4291^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3390 + ... + 18358.

Almost surely, 2^162772906 is an apocalyptic number.

162772906 is a deficient number, since it is larger than the sum of its proper divisors (81447674).

162772906 is a wasteful number, since it uses less digits than its factorization.

162772906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20408.

The product of its (nonzero) digits is 63504, while the sum is 40.

The square root of 162772906 is about 12758.2485475084. The cubic root of 162772906 is about 546.0017554631.

The spelling of 162772906 in words is "one hundred sixty-two million, seven hundred seventy-two thousand, nine hundred six".