1940101 has 4 divisors (see below), whose sum is σ = 1945600. Its totient is φ = 1934604.

The previous prime is 1940087. The next prime is 1940123. The reversal of 1940101 is 1010491.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 1940101 - 2⁵ = 1940069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1940131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2181 + ... + 2938.

It is an arithmetic number, because the mean of its divisors is an integer number (486400).

2^1940101 is an apocalyptic number.

It is an amenable number.

1940101 is a deficient number, since it is larger than the sum of its proper divisors (5499).

1940101 is an equidigital number, since it uses as much as digits as its factorization.

1940101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5498.

The product of its (nonzero) digits is 36, while the sum is 16.

The square root of 1940101 is about 1392.8750841335. The cubic root of 1940101 is about 124.7215347843.

Adding to 1940101 its reverse (1010491), we get a palindrome (2950592).

The spelling of 1940101 in words is "one million, nine hundred forty thousand, one hundred one".