2520140393 has 2 divisors, whose sum is σ = 2520140394. Its totient is φ = 2520140392.

The previous prime is 2520140353. The next prime is 2520140417. The reversal of 2520140393 is 3930410252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1436940649 + 1083199744 = 37907^2 + 32912^2 .

It is a cyclic number.

It is not a de Polignac number, because 2520140393 - 2⁸ = 2520140137 is a prime.

It is a super-2 number, since 2×2520140393² = 12702215200860388898, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2520140303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1260070196 + 1260070197.

It is an arithmetic number, because the mean of its divisors is an integer number (1260070197).

Almost surely, 2^2520140393 is an apocalyptic number.

It is an amenable number.

2520140393 is a deficient number, since it is larger than the sum of its proper divisors (1).

2520140393 is an equidigital number, since it uses as much as digits as its factorization.

2520140393 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 2520140393 is about 50200.9999203203. Note that the first 4 decimals coincide. The cubic root of 2520140393 is about 1360.8436938035.

The spelling of 2520140393 in words is "two billion, five hundred twenty million, one hundred forty thousand, three hundred ninety-three".