2100361 has 4 divisors (see below), whose sum is σ = 2103300. Its totient is φ = 2097424.

The previous prime is 2100353. The next prime is 2100377. The reversal of 2100361 is 1630012.

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.

It can be written as a sum of positive squares in 2 ways, for example, as 1394761 + 705600 = 1181^2 + 840^2 .

It is a cyclic number.

It is not a de Polignac number, because 2100361 - 2³ = 2100353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2100661) 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, 375 + ... + 2083.

It is an arithmetic number, because the mean of its divisors is an integer number (525825).

2^2100361 is an apocalyptic number.

It is an amenable number.

2100361 is a deficient number, since it is larger than the sum of its proper divisors (2939).

2100361 is a wasteful number, since it uses less digits than its factorization.

2100361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2938.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 2100361 is about 1449.2622260999. The cubic root of 2100361 is about 128.0652540002.

Adding to 2100361 its reverse (1630012), we get a palindrome (3730373).

The spelling of 2100361 in words is "two million, one hundred thousand, three hundred sixty-one".