1145055817 has 2 divisors, whose sum is σ = 1145055818. Its totient is φ = 1145055816.

The previous prime is 1145055811. The next prime is 1145055823. The reversal of 1145055817 is 7185505411.

It is a balanced prime because it is at equal distance from previous prime (1145055811) and next prime (1145055823).

It can be written as a sum of positive squares in only one way, i.e., 574992441 + 570063376 = 23979^2 + 23876^2 .

It is a cyclic number.

It is not a de Polignac number, because 1145055817 - 2³ = 1145055809 is a prime.

It is a super-2 number, since 2×1145055817² = 2622305648091074978, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1145055811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572527908 + 572527909.

It is an arithmetic number, because the mean of its divisors is an integer number (572527909).

Almost surely, 2^1145055817 is an apocalyptic number.

It is an amenable number.

1145055817 is a deficient number, since it is larger than the sum of its proper divisors (1).

1145055817 is an equidigital number, since it uses as much as digits as its factorization.

1145055817 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28000, while the sum is 37.

The square root of 1145055817 is about 33838.6733930277. The cubic root of 1145055817 is about 1046.1859560542.

The spelling of 1145055817 in words is "one billion, one hundred forty-five million, fifty-five thousand, eight hundred seventeen".