162888641 has 4 divisors (see below), whose sum is σ = 163026372. Its totient is φ = 162750912.

The previous prime is 162888637. The next prime is 162888647. The reversal of 162888641 is 146888261.

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

It can be written as a sum of positive squares in 2 ways, for example, as 102111025 + 60777616 = 10105^2 + 7796^2 .

It is a cyclic number.

It is not a de Polignac number, because 162888641 - 2² = 162888637 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 162888592 and 162888601.

It is not an unprimeable number, because it can be changed into a prime (162888647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67076 + ... + 69461.

It is an arithmetic number, because the mean of its divisors is an integer number (40756593).

Almost surely, 2^162888641 is an apocalyptic number.

It is an amenable number.

162888641 is a deficient number, since it is larger than the sum of its proper divisors (137731).

162888641 is a wasteful number, since it uses less digits than its factorization.

162888641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137730.

The product of its digits is 147456, while the sum is 44.

The square root of 162888641 is about 12762.7834346588. The cubic root of 162888641 is about 546.1311310941.

The spelling of 162888641 in words is "one hundred sixty-two million, eight hundred eighty-eight thousand, six hundred forty-one".