1353857339381 has 2 divisors, whose sum is σ = 1353857339382. Its totient is φ = 1353857339380.

The previous prime is 1353857339333. The next prime is 1353857339449. The reversal of 1353857339381 is 1839337583531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1204745516881 + 149111822500 = 1097609^2 + 386150^2 .

It is a cyclic number.

It is not a de Polignac number, because 1353857339381 - 2¹⁰ = 1353857338357 is a prime.

It is a super-2 number, since 2×1353857339381² (a number of 25 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1353857339381.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1353857339321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 676928669690 + 676928669691.

It is an arithmetic number, because the mean of its divisors is an integer number (676928669691).

Almost surely, 2^{1353857339381} is an apocalyptic number.

It is an amenable number.

1353857339381 is a deficient number, since it is larger than the sum of its proper divisors (1).

1353857339381 is an equidigital number, since it uses as much as digits as its factorization.

1353857339381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24494400, while the sum is 59.

The spelling of 1353857339381 in words is "one trillion, three hundred fifty-three billion, eight hundred fifty-seven million, three hundred thirty-nine thousand, three hundred eighty-one".