1352999381 has 2 divisors, whose sum is σ = 1352999382. Its totient is φ = 1352999380.

The previous prime is 1352999369. The next prime is 1352999393. The reversal of 1352999381 is 1839992531.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (1352999369) and next prime (1352999393).

It can be written as a sum of positive squares in only one way, i.e., 1192597156 + 160402225 = 34534^2 + 12665^2 .

It is a cyclic number.

It is not a de Polignac number, because 1352999381 - 2³⁰ = 279257557 is a prime.

It is a super-2 number, since 2×1352999381² = 3661214649972766322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1352999341) 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, 676499690 + 676499691.

It is an arithmetic number, because the mean of its divisors is an integer number (676499691).

Almost surely, 2^1352999381 is an apocalyptic number.

It is an amenable number.

1352999381 is a deficient number, since it is larger than the sum of its proper divisors (1).

1352999381 is an equidigital number, since it uses as much as digits as its factorization.

1352999381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 524880, while the sum is 50.

The square root of 1352999381 is about 36783.1399013189. The cubic root of 1352999381 is about 1106.0273489112.

The spelling of 1352999381 in words is "one billion, three hundred fifty-two million, nine hundred ninety-nine thousand, three hundred eighty-one".