1205520412 has 6 divisors (see below), whose sum is σ = 2109660728. Its totient is φ = 602760204.

The previous prime is 1205520389. The next prime is 1205520419. The reversal of 1205520412 is 2140255021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1205520419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 150690048 + ... + 150690055.

Almost surely, 2^1205520412 is an apocalyptic number.

It is an amenable number.

1205520412 is a deficient number, since it is larger than the sum of its proper divisors (904140316).

1205520412 is a wasteful number, since it uses less digits than its factorization.

1205520412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301380107 (or 301380105 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 1205520412 is about 34720.6050062495. The cubic root of 1205520412 is about 1064.2856081695.

Adding to 1205520412 its reverse (2140255021), we get a palindrome (3345775433).

The spelling of 1205520412 in words is "one billion, two hundred five million, five hundred twenty thousand, four hundred twelve".