162001801 has 16 divisors (see below), whose sum is σ = 181031760. Its totient is φ = 143942400.

The previous prime is 162001757. The next prime is 162001831. The reversal of 162001801 is 108100261.

It can be written as a sum of positive squares in 8 ways, for example, as 18481401 + 143520400 = 4299^2 + 11980^2 .

It is a cyclic number.

It is not a de Polignac number, because 162001801 - 2⁹ = 162001289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (162001831) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 230751 + ... + 231451.

It is an arithmetic number, because the mean of its divisors is an integer number (11314485).

Almost surely, 2^162001801 is an apocalyptic number.

It is an amenable number.

162001801 is a deficient number, since it is larger than the sum of its proper divisors (19029959).

162001801 is a wasteful number, since it uses less digits than its factorization.

162001801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1356.

The product of its (nonzero) digits is 96, while the sum is 19.

The square root of 162001801 is about 12727.9928111230. The cubic root of 162001801 is about 545.1381979867.

The spelling of 162001801 in words is "one hundred sixty-two million, one thousand, eight hundred one".