1206104205 has 16 divisors (see below), whose sum is σ = 1974646080. Its totient is φ = 628295808.

The previous prime is 1206104201. The next prime is 1206104231. The reversal of 1206104205 is 5024016021.

It is not a de Polignac number, because 1206104205 - 2² = 1206104201 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1206104201) 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, 934320 + ... + 935609.

It is an arithmetic number, because the mean of its divisors is an integer number (123415380).

Almost surely, 2^1206104205 is an apocalyptic number.

1206104205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1206104205 is a deficient number, since it is larger than the sum of its proper divisors (768541875).

1206104205 is a wasteful number, since it uses less digits than its factorization.

1206104205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1869980.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 1206104205 is about 34729.0109994512. The cubic root of 1206104205 is about 1064.4573796893.

The spelling of 1206104205 in words is "one billion, two hundred six million, one hundred four thousand, two hundred five".