12091004 has 6 divisors (see below), whose sum is σ = 21159264. Its totient is φ = 6045500.

The previous prime is 12091003. The next prime is 12091007. The reversal of 12091004 is 40019021.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12091003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1511372 + ... + 1511379.

It is an arithmetic number, because the mean of its divisors is an integer number (3526544).

Almost surely, 2^12091004 is an apocalyptic number.

It is an amenable number.

12091004 is a deficient number, since it is larger than the sum of its proper divisors (9068260).

12091004 is a wasteful number, since it uses less digits than its factorization.

12091004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3022755 (or 3022753 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 12091004 is about 3477.2121016700. The cubic root of 12091004 is about 229.5201337308.

The spelling of 12091004 in words is "twelve million, ninety-one thousand, four".