19375313 has 2 divisors, whose sum is σ = 19375314. Its totient is φ = 19375312.

The previous prime is 19375297. The next prime is 19375331. The reversal of 19375313 is 31357391.

19375313 = 3112² + 3113².

Together with next prime (19375331) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9690769 + 9684544 = 3113^2 + 3112^2 .

It is a cyclic number.

It is not a de Polignac number, because 19375313 - 2⁴ = 19375297 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 19375313.

It is not a weakly prime, because it can be changed into another prime (19375333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9687656 + 9687657.

It is an arithmetic number, because the mean of its divisors is an integer number (9687657).

Almost surely, 2^19375313 is an apocalyptic number.

19375313 is the 3113-rd centered square number.

It is an amenable number.

19375313 is a deficient number, since it is larger than the sum of its proper divisors (1).

19375313 is an equidigital number, since it uses as much as digits as its factorization.

19375313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8505, while the sum is 32.

The square root of 19375313 is about 4401.7397696820. The cubic root of 19375313 is about 268.5857140513.

The spelling of 19375313 in words is "nineteen million, three hundred seventy-five thousand, three hundred thirteen".