1213882530 has 32 divisors (see below), whose sum is σ = 3329506944. Its totient is φ = 277458816.

The previous prime is 1213882529. The next prime is 1213882559. The reversal of 1213882530 is 352883121.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1213882491 and 1213882500.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2889987 + ... + 2890406.

It is an arithmetic number, because the mean of its divisors is an integer number (104047092).

Almost surely, 2^1213882530 is an apocalyptic number.

1213882530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1213882530 is an abundant number, since it is smaller than the sum of its proper divisors (2115624414).

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

1213882530 is a wasteful number, since it uses less digits than its factorization.

1213882530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5780410.

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 1213882530 is about 34840.8170110863. The cubic root of 1213882530 is about 1066.7407534261.

The spelling of 1213882530 in words is "one billion, two hundred thirteen million, eight hundred eighty-two thousand, five hundred thirty".