201061 has 4 divisors (see below), whose sum is σ = 229792. Its totient is φ = 172332.

The previous prime is 201049. The next prime is 201073. The reversal of 201061 is 160102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 160102 = 2 ⋅80051.

It is an interprime number because it is at equal distance from previous prime (201049) and next prime (201073).

It is a cyclic number.

It is not a de Polignac number, because 201061 - 2¹⁵ = 168293 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201011) 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, 14355 + ... + 14368.

It is an arithmetic number, because the mean of its divisors is an integer number (57448).

2²⁰¹⁰⁶¹ is an apocalyptic number.

It is an amenable number.

201061 is a deficient number, since it is larger than the sum of its proper divisors (28731).

201061 is an equidigital number, since it uses as much as digits as its factorization.

201061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28730.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 201061 is about 448.3982604783. The cubic root of 201061 is about 58.5835851938.

Adding to 201061 its reverse (160102), we get a palindrome (361163).

It can be divided in two parts, 20 and 1061, that added together give a triangular number (1081 = T₄₆).

The spelling of 201061 in words is "two hundred one thousand, sixty-one".