1375742497 has 2 divisors, whose sum is σ = 1375742498. Its totient is φ = 1375742496.

The previous prime is 1375742491. The next prime is 1375742503. The reversal of 1375742497 is 7942475731.

It is a balanced prime because it is at equal distance from previous prime (1375742491) and next prime (1375742503).

It can be written as a sum of positive squares in only one way, i.e., 1327800721 + 47941776 = 36439^2 + 6924^2 .

It is a cyclic number.

It is not a de Polignac number, because 1375742497 - 2⁷ = 1375742369 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1375742497.

It is not a weakly prime, because it can be changed into another prime (1375742491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 687871248 + 687871249.

It is an arithmetic number, because the mean of its divisors is an integer number (687871249).

Almost surely, 2^1375742497 is an apocalyptic number.

It is an amenable number.

1375742497 is a deficient number, since it is larger than the sum of its proper divisors (1).

1375742497 is an equidigital number, since it uses as much as digits as its factorization.

1375742497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1481760, while the sum is 49.

The square root of 1375742497 is about 37091.0029117575. The cubic root of 1375742497 is about 1112.1901666667.

The spelling of 1375742497 in words is "one billion, three hundred seventy-five million, seven hundred forty-two thousand, four hundred ninety-seven".