1375959913 has 2 divisors, whose sum is σ = 1375959914. Its totient is φ = 1375959912.

The previous prime is 1375959901. The next prime is 1375959919. The reversal of 1375959913 is 3199595731.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1236436569 + 139523344 = 35163^2 + 11812^2 .

It is a cyclic number.

It is not a de Polignac number, because 1375959913 - 2¹³ = 1375951721 is a prime.

It is not a weakly prime, because it can be changed into another prime (1375959919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 687979956 + 687979957.

It is an arithmetic number, because the mean of its divisors is an integer number (687979957).

Almost surely, 2^1375959913 is an apocalyptic number.

It is an amenable number.

1375959913 is a deficient number, since it is larger than the sum of its proper divisors (1).

1375959913 is an equidigital number, since it uses as much as digits as its factorization.

1375959913 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1148175, while the sum is 52.

The square root of 1375959913 is about 37093.9336414999. The cubic root of 1375959913 is about 1112.2487520490.

The spelling of 1375959913 in words is "one billion, three hundred seventy-five million, nine hundred fifty-nine thousand, nine hundred thirteen".