2321145397 has 2 divisors, whose sum is σ = 2321145398. Its totient is φ = 2321145396.

The previous prime is 2321145331. The next prime is 2321145401. The reversal of 2321145397 is 7935411232.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1419104241 + 902041156 = 37671^2 + 30034^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2321145397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2321145797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1160572698 + 1160572699.

It is an arithmetic number, because the mean of its divisors is an integer number (1160572699).

Almost surely, 2^2321145397 is an apocalyptic number.

It is an amenable number.

2321145397 is a deficient number, since it is larger than the sum of its proper divisors (1).

2321145397 is an equidigital number, since it uses as much as digits as its factorization.

2321145397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45360, while the sum is 37.

The square root of 2321145397 is about 48178.2668534268. The cubic root of 2321145397 is about 1324.0390130754.

The spelling of 2321145397 in words is "two billion, three hundred twenty-one million, one hundred forty-five thousand, three hundred ninety-seven".