162017155 has 4 divisors (see below), whose sum is σ = 194420592. Its totient is φ = 129613720.

The previous prime is 162017147. The next prime is 162017197. The reversal of 162017155 is 551710261.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 162017155 - 2³ = 162017147 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16201711 + ... + 16201720.

It is an arithmetic number, because the mean of its divisors is an integer number (48605148).

Almost surely, 2^162017155 is an apocalyptic number.

162017155 is a deficient number, since it is larger than the sum of its proper divisors (32403437).

162017155 is an equidigital number, since it uses as much as digits as its factorization.

162017155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32403436.

The product of its (nonzero) digits is 2100, while the sum is 28.

The square root of 162017155 is about 12728.5959555640. The cubic root of 162017155 is about 545.1554195802.

The spelling of 162017155 in words is "one hundred sixty-two million, seventeen thousand, one hundred fifty-five".