1205431412 has 12 divisors (see below), whose sum is σ = 2109772896. Its totient is φ = 602639160.

The previous prime is 1205431391. The next prime is 1205431453. The reversal of 1205431412 is 2141345021.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30737 + ... + 57927.

It is an arithmetic number, because the mean of its divisors is an integer number (175814408).

Almost surely, 2^1205431412 is an apocalyptic number.

It is an amenable number.

1205431412 is a deficient number, since it is larger than the sum of its proper divisors (904341484).

1205431412 is a wasteful number, since it uses less digits than its factorization.

1205431412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38278 (or 38276 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 1205431412 is about 34719.3233228990. The cubic root of 1205431412 is about 1064.2594165073.

Adding to 1205431412 its reverse (2141345021), we get a palindrome (3346776433).

The spelling of 1205431412 in words is "one billion, two hundred five million, four hundred thirty-one thousand, four hundred twelve".