1341218128 has 20 divisors (see below), whose sum is σ = 2751470100. Its totient is φ = 631161344.

The previous prime is 1341218119. The next prime is 1341218141. The reversal of 1341218128 is 8218121431.

It can be written as a sum of positive squares in 2 ways, for example, as 549808704 + 791409424 = 23448^2 + 28132^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1341218128.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2465203 + ... + 2465746.

It is an arithmetic number, because the mean of its divisors is an integer number (137573505).

Almost surely, 2^1341218128 is an apocalyptic number.

It is an amenable number.

1341218128 is an abundant number, since it is smaller than the sum of its proper divisors (1410251972).

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

1341218128 is a wasteful number, since it uses less digits than its factorization.

1341218128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4930974 (or 4930968 counting only the distinct ones).

The product of its digits is 3072, while the sum is 31.

The square root of 1341218128 is about 36622.6450164376. The cubic root of 1341218128 is about 1102.8077384741.

Adding to 1341218128 its reverse (8218121431), we get a palindrome (9559339559).

The spelling of 1341218128 in words is "one billion, three hundred forty-one million, two hundred eighteen thousand, one hundred twenty-eight".