1375899653 has 2 divisors, whose sum is σ = 1375899654. Its totient is φ = 1375899652.

The previous prime is 1375899601. The next prime is 1375899659. The reversal of 1375899653 is 3569985731.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 805310884 + 570588769 = 28378^2 + 23887^2 .

It is a cyclic number.

It is not a de Polignac number, because 1375899653 - 2⁶ = 1375899589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1375899659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 687949826 + 687949827.

It is an arithmetic number, because the mean of its divisors is an integer number (687949827).

Almost surely, 2^1375899653 is an apocalyptic number.

It is an amenable number.

1375899653 is a deficient number, since it is larger than the sum of its proper divisors (1).

1375899653 is an equidigital number, since it uses as much as digits as its factorization.

1375899653 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6123600, while the sum is 56.

The square root of 1375899653 is about 37093.1213704104. The cubic root of 1375899653 is about 1112.2325148782.

The spelling of 1375899653 in words is "one billion, three hundred seventy-five million, eight hundred ninety-nine thousand, six hundred fifty-three".