162611201 has 4 divisors (see below), whose sum is σ = 162636804. Its totient is φ = 162585600.

The previous prime is 162611179. The next prime is 162611203. The reversal of 162611201 is 102116261.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 102116261 = 13 ⋅7855097.

It can be written as a sum of positive squares in 2 ways, for example, as 89491600 + 73119601 = 9460^2 + 8551^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-162611201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (162611203) 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, 4721 + ... + 18641.

It is an arithmetic number, because the mean of its divisors is an integer number (40659201).

It is a Proth number, since it is equal to 9925 ⋅ 2¹⁴ + 1 and 9925 < 2¹⁴.

Almost surely, 2^162611201 is an apocalyptic number.

It is an amenable number.

162611201 is a deficient number, since it is larger than the sum of its proper divisors (25603).

162611201 is a wasteful number, since it uses less digits than its factorization.

162611201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25602.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 162611201 is about 12751.9097001194. The cubic root of 162611201 is about 545.8208890247.

Adding to 162611201 its reverse (102116261), we get a palindrome (264727462).

The spelling of 162611201 in words is "one hundred sixty-two million, six hundred eleven thousand, two hundred one".