1217261034 has 40 divisors (see below), whose sum is σ = 2975531328. Its totient is φ = 368866440.

The previous prime is 1217261033. The next prime is 1217261077. The reversal of 1217261034 is 4301627121.

1217261034 is a `hidden beast` number, since 1 + 2 + 17 + 2 + 610 + 34 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 1217260989 and 1217261007.

It is not an unprimeable number, because it can be changed into a prime (1217261033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 339762 + ... + 343325.

Almost surely, 2^1217261034 is an apocalyptic number.

1217261034 is an abundant number, since it is smaller than the sum of its proper divisors (1758270294).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1217261034 is a wasteful number, since it uses less digits than its factorization.

1217261034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 683112 (or 683103 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 1217261034 is about 34889.2681780515. The cubic root of 1217261034 is about 1067.7294953096.

Adding to 1217261034 its reverse (4301627121), we get a palindrome (5518888155).

It can be divided in two parts, 121726 and 1034, that added together give a triangular number (122760 = T₄₉₅).

The spelling of 1217261034 in words is "one billion, two hundred seventeen million, two hundred sixty-one thousand, thirty-four".