162171398 has 32 divisors (see below), whose sum is σ = 263160576. Its totient is φ = 74677248.

The previous prime is 162171397. The next prime is 162171461. The reversal of 162171398 is 893171261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (162171391) 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 in 15 ways as a sum of consecutive naturals, for example, 553340 + ... + 553632.

It is an arithmetic number, because the mean of its divisors is an integer number (8223768).

Almost surely, 2^162171398 is an apocalyptic number.

162171398 is a deficient number, since it is larger than the sum of its proper divisors (100989178).

162171398 is a wasteful number, since it uses less digits than its factorization.

162171398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 608.

The product of its digits is 18144, while the sum is 38.

The square root of 162171398 is about 12734.6534306985. The cubic root of 162171398 is about 545.3283636893.

The spelling of 162171398 in words is "one hundred sixty-two million, one hundred seventy-one thousand, three hundred ninety-eight".