1217252527 has 2 divisors, whose sum is σ = 1217252528. Its totient is φ = 1217252526.

The previous prime is 1217252507. The next prime is 1217252549. The reversal of 1217252527 is 7252527121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1217252527 - 2¹¹ = 1217250479 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1217252492 and 1217252501.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1217252507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 608626263 + 608626264.

It is an arithmetic number, because the mean of its divisors is an integer number (608626264).

Almost surely, 2^1217252527 is an apocalyptic number.

1217252527 is a deficient number, since it is larger than the sum of its proper divisors (1).

1217252527 is an equidigital number, since it uses as much as digits as its factorization.

1217252527 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19600, while the sum is 34.

The square root of 1217252527 is about 34889.1462635588. The cubic root of 1217252527 is about 1067.7270079779.

Adding to 1217252527 its reverse (7252527121), we get a palindrome (8469779648).

The spelling of 1217252527 in words is "one billion, two hundred seventeen million, two hundred fifty-two thousand, five hundred twenty-seven".