1213341864 has 64 divisors (see below), whose sum is σ = 3551264640. Its totient is φ = 338211840.

The previous prime is 1213341847. The next prime is 1213341887. The reversal of 1213341864 is 4681433121.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81189 + ... + 94964.

It is an arithmetic number, because the mean of its divisors is an integer number (55488510).

Almost surely, 2^1213341864 is an apocalyptic number.

1213341864 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1213341864 is an abundant number, since it is smaller than the sum of its proper divisors (2337922776).

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

1213341864 is a wasteful number, since it uses less digits than its factorization.

1213341864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176210 (or 176206 counting only the distinct ones).

The product of its digits is 13824, while the sum is 33.

The square root of 1213341864 is about 34833.0570579155. The cubic root of 1213341864 is about 1066.5823536656.

Adding to 1213341864 its reverse (4681433121), we get a palindrome (5894774985).

The spelling of 1213341864 in words is "one billion, two hundred thirteen million, three hundred forty-one thousand, eight hundred sixty-four".