1931201 has 4 divisors (see below), whose sum is σ = 1941504. Its totient is φ = 1920900.

The previous prime is 1931177. The next prime is 1931203. The reversal of 1931201 is 1021391.

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 1931201 - 2¹⁰ = 1930177 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1931201.

It is not an unprimeable number, because it can be changed into a prime (1931203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4865 + ... + 5246.

It is an arithmetic number, because the mean of its divisors is an integer number (485376).

2^1931201 is an apocalyptic number.

It is an amenable number.

1931201 is a deficient number, since it is larger than the sum of its proper divisors (10303).

1931201 is a wasteful number, since it uses less digits than its factorization.

1931201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10302.

The product of its (nonzero) digits is 54, while the sum is 17.

The square root of 1931201 is about 1389.6765810792. The cubic root of 1931201 is about 124.5305269680.

Adding to 1931201 its reverse (1021391), we get a palindrome (2952592).

The spelling of 1931201 in words is "one million, nine hundred thirty-one thousand, two hundred one".