1212665134 has 8 divisors (see below), whose sum is σ = 1821663000. Its totient is φ = 605444136.

The previous prime is 1212665107. The next prime is 1212665143. The reversal of 1212665134 is 4315662121.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1212665096 and 1212665105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 442509 + ... + 445240.

It is an arithmetic number, because the mean of its divisors is an integer number (227707875).

Almost surely, 2^1212665134 is an apocalyptic number.

1212665134 is a deficient number, since it is larger than the sum of its proper divisors (608997866).

1212665134 is an equidigital number, since it uses as much as digits as its factorization.

1212665134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 888434.

The product of its digits is 8640, while the sum is 31.

The square root of 1212665134 is about 34823.3417982824. The cubic root of 1212665134 is about 1066.3840247007.

The spelling of 1212665134 in words is "one billion, two hundred twelve million, six hundred sixty-five thousand, one hundred thirty-four".