831193453 has 2 divisors, whose sum is σ = 831193454. Its totient is φ = 831193452.

The previous prime is 831193409. The next prime is 831193459. The reversal of 831193453 is 354391138.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 811851049 + 19342404 = 28493^2 + 4398^2 .

It is a cyclic number.

It is not a de Polignac number, because 831193453 - 2¹³ = 831185261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (831193459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 415596726 + 415596727.

It is an arithmetic number, because the mean of its divisors is an integer number (415596727).

Almost surely, 2^831193453 is an apocalyptic number.

It is an amenable number.

831193453 is a deficient number, since it is larger than the sum of its proper divisors (1).

831193453 is an equidigital number, since it uses as much as digits as its factorization.

831193453 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 38880, while the sum is 37.

The square root of 831193453 is about 28830.4258206500. The cubic root of 831193453 is about 940.2298566454.

The spelling of 831193453 in words is "eight hundred thirty-one million, one hundred ninety-three thousand, four hundred fifty-three".