2097725431 has 2 divisors, whose sum is σ = 2097725432. Its totient is φ = 2097725430.

The previous prime is 2097725429. The next prime is 2097725437. The reversal of 2097725431 is 1345277902.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2097725431 - 2¹ = 2097725429 is a prime.

It is a super-3 number, since 3×2097725431³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

Together with 2097725429, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2097725437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1048862715 + 1048862716.

It is an arithmetic number, because the mean of its divisors is an integer number (1048862716).

Almost surely, 2^2097725431 is an apocalyptic number.

2097725431 is a deficient number, since it is larger than the sum of its proper divisors (1).

2097725431 is an equidigital number, since it uses as much as digits as its factorization.

2097725431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 105840, while the sum is 40.

The square root of 2097725431 is about 45800.9326433425. The cubic root of 2097725431 is about 1280.1166542039.

The spelling of 2097725431 in words is "two billion, ninety-seven million, seven hundred twenty-five thousand, four hundred thirty-one".