1206155012 has 24 divisors (see below), whose sum is σ = 2137429056. Its totient is φ = 595509408.

The previous prime is 1206154951. The next prime is 1206155021. The reversal of 1206155012 is 2105516021.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96473 + ... + 108255.

It is an arithmetic number, because the mean of its divisors is an integer number (89059544).

Almost surely, 2^1206155012 is an apocalyptic number.

It is an amenable number.

1206155012 is a deficient number, since it is larger than the sum of its proper divisors (931274044).

1206155012 is a wasteful number, since it uses less digits than its factorization.

1206155012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12107 (or 12105 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 23.

The square root of 1206155012 is about 34729.7424695318. The cubic root of 1206155012 is about 1064.4723261940.

The spelling of 1206155012 in words is "one billion, two hundred six million, one hundred fifty-five thousand, twelve".