1205215104 has 32 divisors (see below), whose sum is σ = 3201353640. Its totient is φ = 401738240.

The previous prime is 1205215093. The next prime is 1205215129. The reversal of 1205215104 is 4015125021.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

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, 1568907 + ... + 1569674.

Almost surely, 2^1205215104 is an apocalyptic number.

It is an amenable number.

1205215104 is an abundant number, since it is smaller than the sum of its proper divisors (1996138536).

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

1205215104 is an equidigital number, since it uses as much as digits as its factorization.

1205215104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3138598 (or 3138586 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 1205215104 is about 34716.2080878658. The cubic root of 1205215104 is about 1064.1957542105.

The spelling of 1205215104 in words is "one billion, two hundred five million, two hundred fifteen thousand, one hundred four".