331140053 has 2 divisors, whose sum is σ = 331140054. Its totient is φ = 331140052.

The previous prime is 331140041. The next prime is 331140077. The reversal of 331140053 is 350041133.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 329132164 + 2007889 = 18142^2 + 1417^2 .

It is a cyclic number.

It is not a de Polignac number, because 331140053 - 2⁶ = 331139989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (331140023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 165570026 + 165570027.

It is an arithmetic number, because the mean of its divisors is an integer number (165570027).

Almost surely, 2^331140053 is an apocalyptic number.

It is an amenable number.

331140053 is a deficient number, since it is larger than the sum of its proper divisors (1).

331140053 is an equidigital number, since it uses as much as digits as its factorization.

331140053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 331140053 is about 18197.2539961391. The cubic root of 331140053 is about 691.8371910579.

Adding to 331140053 its reverse (350041133), we get a palindrome (681181186).

The spelling of 331140053 in words is "three hundred thirty-one million, one hundred forty thousand, fifty-three".