1212179934 has 48 divisors (see below), whose sum is σ = 2986078608. Its totient is φ = 325963008.

The previous prime is 1212179921. The next prime is 1212179963. The reversal of 1212179934 is 4399712121.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1212179892 and 1212179901.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 116269 + ... + 126264.

It is an arithmetic number, because the mean of its divisors is an integer number (62209971).

Almost surely, 2^1212179934 is an apocalyptic number.

1212179934 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1212179934 is an abundant number, since it is smaller than the sum of its proper divisors (1773898674).

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

1212179934 is a wasteful number, since it uses less digits than its factorization.

1212179934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242569 (or 242562 counting only the distinct ones).

The product of its digits is 27216, while the sum is 39.

The square root of 1212179934 is about 34816.3745097045. The cubic root of 1212179934 is about 1066.2417819285.

The spelling of 1212179934 in words is "one billion, two hundred twelve million, one hundred seventy-nine thousand, nine hundred thirty-four".