31941001 has 4 divisors (see below), whose sum is σ = 31972500. Its totient is φ = 31909504.

The previous prime is 31940999. The next prime is 31941017. The reversal of 31941001 is 10014913.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16613776 + 15327225 = 4076^2 + 3915^2 .

It is a cyclic number.

It is not a de Polignac number, because 31941001 - 2¹ = 31940999 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31941001.

It is not an unprimeable number, because it can be changed into a prime (31941031) 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, 14176 + ... + 16273.

It is an arithmetic number, because the mean of its divisors is an integer number (7993125).

Almost surely, 2^31941001 is an apocalyptic number.

It is an amenable number.

31941001 is a deficient number, since it is larger than the sum of its proper divisors (31499).

31941001 is a wasteful number, since it uses less digits than its factorization.

31941001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31498.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 31941001 is about 5651.6370194838. The cubic root of 31941001 is about 317.2849756195.

Adding to 31941001 its reverse (10014913), we get a palindrome (41955914).

The spelling of 31941001 in words is "thirty-one million, nine hundred forty-one thousand, one".