1213164246 has 64 divisors (see below), whose sum is σ = 2895552000. Its totient is φ = 338532768.

The previous prime is 1213164229. The next prime is 1213164259. The reversal of 1213164246 is 6424613121.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 81640 + ... + 95348.

It is an arithmetic number, because the mean of its divisors is an integer number (45243000).

Almost surely, 2^1213164246 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1213164246, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1447776000).

1213164246 is an abundant number, since it is smaller than the sum of its proper divisors (1682387754).

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

1213164246 is a wasteful number, since it uses less digits than its factorization.

1213164246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13778 (or 13764 counting only the distinct ones).

The product of its digits is 6912, while the sum is 30.

The square root of 1213164246 is about 34830.5074037115. The cubic root of 1213164246 is about 1066.5303063752.

Adding to 1213164246 its reverse (6424613121), we get a palindrome (7637777367).

The spelling of 1213164246 in words is "one billion, two hundred thirteen million, one hundred sixty-four thousand, two hundred forty-six".