1012545617 has 2 divisors, whose sum is σ = 1012545618. Its totient is φ = 1012545616.

The previous prime is 1012545593. The next prime is 1012545637. The reversal of 1012545617 is 7165452101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1010985616 + 1560001 = 31796^2 + 1249^2 .

It is a cyclic number.

It is not a de Polignac number, because 1012545617 - 2²⁸ = 744110161 is a prime.

It is a super-3 number, since 3×1012545617³ (a number of 28 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (1012545637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506272808 + 506272809.

It is an arithmetic number, because the mean of its divisors is an integer number (506272809).

Almost surely, 2^1012545617 is an apocalyptic number.

It is an amenable number.

1012545617 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012545617 is an equidigital number, since it uses as much as digits as its factorization.

1012545617 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8400, while the sum is 32.

The square root of 1012545617 is about 31820.5219473220. The cubic root of 1012545617 is about 1004.1645051550.

Adding to 1012545617 its reverse (7165452101), we get a palindrome (8177997718).

The spelling of 1012545617 in words is "one billion, twelve million, five hundred forty-five thousand, six hundred seventeen".