331140001 has 2 divisors, whose sum is σ = 331140002. Its totient is φ = 331140000.

The previous prime is 331139989. The next prime is 331140023. The reversal of 331140001 is 100041133.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 321843600 + 9296401 = 17940^2 + 3049^2 .

It is a cyclic number.

It is not a de Polignac number, because 331140001 - 2⁵ = 331139969 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (331140031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165570000 + 165570001.

It is an arithmetic number, because the mean of its divisors is an integer number (165570001).

Almost surely, 2^331140001 is an apocalyptic number.

It is an amenable number.

331140001 is a deficient number, since it is larger than the sum of its proper divisors (1).

331140001 is an equidigital number, since it uses as much as digits as its factorization.

331140001 is an evil number, because the sum of its binary digits is even.

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

The square root of 331140001 is about 18197.2525673520. The cubic root of 331140001 is about 691.8371548441.

Adding to 331140001 its reverse (100041133), we get a palindrome (431181134).

The spelling of 331140001 in words is "three hundred thirty-one million, one hundred forty thousand, one".