162641897 has 8 divisors (see below), whose sum is σ = 180076512. Its totient is φ = 145648800.

The previous prime is 162641887. The next prime is 162641923. The reversal of 162641897 is 798146261.

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

It is not a de Polignac number, because 162641897 - 2⁶ = 162641833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (162641807) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 109604 + ... + 111077.

It is an arithmetic number, because the mean of its divisors is an integer number (22509564).

Almost surely, 2^162641897 is an apocalyptic number.

It is an amenable number.

162641897 is a deficient number, since it is larger than the sum of its proper divisors (17434615).

162641897 is a wasteful number, since it uses less digits than its factorization.

162641897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220759.

The product of its digits is 145152, while the sum is 44.

The square root of 162641897 is about 12753.1132277574. The cubic root of 162641897 is about 545.8552316034.

The spelling of 162641897 in words is "one hundred sixty-two million, six hundred forty-one thousand, eight hundred ninety-seven".