1213590608 has 80 divisors (see below), whose sum is σ = 2522048400. Its totient is φ = 564695040.

The previous prime is 1213590601. The next prime is 1213590641. The reversal of 1213590608 is 8060953121.

It can be written as a sum of positive squares in 8 ways, for example, as 1993744 + 1211596864 = 1412^2 + 34808^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213590601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1499708 + ... + 1500516.

It is an arithmetic number, because the mean of its divisors is an integer number (31525605).

Almost surely, 2^1213590608 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1213590608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1261024200).

1213590608 is an abundant number, since it is smaller than the sum of its proper divisors (1308457792).

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

1213590608 is a wasteful number, since it uses less digits than its factorization.

1213590608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 960 (or 954 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 35.

The square root of 1213590608 is about 34836.6273912961. The cubic root of 1213590608 is about 1066.6552344261.

The spelling of 1213590608 in words is "one billion, two hundred thirteen million, five hundred ninety thousand, six hundred eight".