12091002 has 32 divisors (see below), whose sum is σ = 30150144. Its totient is φ = 3140400.

The previous prime is 12090997. The next prime is 12091003. The reversal of 12091002 is 20019021.

It is a happy 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 in 15 ways as a sum of consecutive naturals, for example, 12624 + ... + 13547.

It is an arithmetic number, because the mean of its divisors is an integer number (942192).

Almost surely, 2^12091002 is an apocalyptic number.

12091002 is an abundant number, since it is smaller than the sum of its proper divisors (18059142).

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

12091002 is a wasteful number, since it uses less digits than its factorization.

12091002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26194.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 12091002 is about 3477.2118140832. The cubic root of 12091002 is about 229.5201210756.

It can be divided in two parts, 1209 and 1002, that added together give a triangular number (2211 = T₆₆).

The spelling of 12091002 in words is "twelve million, ninety-one thousand, two".