1206355120 has 20 divisors (see below), whose sum is σ = 2804775840. Its totient is φ = 482542016.

The previous prime is 1206355109. The next prime is 1206355133. The reversal of 1206355120 is 215536021.

It is a tau number, because it is divible by the number of its divisors (20).

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, 7539640 + ... + 7539799.

It is an arithmetic number, because the mean of its divisors is an integer number (140238792).

Almost surely, 2^1206355120 is an apocalyptic number.

1206355120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1206355120 is an abundant number, since it is smaller than the sum of its proper divisors (1598420720).

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

1206355120 is a wasteful number, since it uses less digits than its factorization.

1206355120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15079452 (or 15079446 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 1206355120 is about 34732.6232812899. The cubic root of 1206355120 is about 1064.5311902835.

The spelling of 1206355120 in words is "one billion, two hundred six million, three hundred fifty-five thousand, one hundred twenty".