1209812034 has 8 divisors (see below), whose sum is σ = 2419624080. Its totient is φ = 403270676.

The previous prime is 1209812017. The next prime is 1209812039. The reversal of 1209812034 is 4302189021.

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

1209812034 is an admirable number.

It is a super-2 number, since 2×1209812034² = 2927290315222434312, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1209811992 and 1209812010.

It is not an unprimeable number, because it can be changed into a prime (1209812039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100817664 + ... + 100817675.

It is an arithmetic number, because the mean of its divisors is an integer number (302453010).

Almost surely, 2^1209812034 is an apocalyptic number.

1209812034 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1209812034 is a wasteful number, since it uses less digits than its factorization.

1209812034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201635344.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 1209812034 is about 34782.3523356314. The cubic root of 1209812034 is about 1065.5470556750.

The spelling of 1209812034 in words is "one billion, two hundred nine million, eight hundred twelve thousand, thirty-four".