1375415917 has 2 divisors, whose sum is σ = 1375415918. Its totient is φ = 1375415916.

The previous prime is 1375415903. The next prime is 1375415929. The reversal of 1375415917 is 7195145731.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1375371396 + 44521 = 37086^2 + 211^2 .

It is a cyclic number.

It is not a de Polignac number, because 1375415917 - 2²³ = 1367027309 is a prime.

It is a super-3 number, since 3×1375415917³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1375415317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 687707958 + 687707959.

It is an arithmetic number, because the mean of its divisors is an integer number (687707959).

Almost surely, 2^1375415917 is an apocalyptic number.

It is an amenable number.

1375415917 is a deficient number, since it is larger than the sum of its proper divisors (1).

1375415917 is an equidigital number, since it uses as much as digits as its factorization.

1375415917 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 132300, while the sum is 43.

The square root of 1375415917 is about 37086.6002351254. The cubic root of 1375415917 is about 1112.1021541183.

The spelling of 1375415917 in words is "one billion, three hundred seventy-five million, four hundred fifteen thousand, nine hundred seventeen".