1205126396 has 12 divisors (see below), whose sum is σ = 2233028448. Its totient is φ = 567118272.

The previous prime is 1205126383. The next prime is 1205126399. The reversal of 1205126396 is 6936215021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1205126399) by changing a digit.

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, 8861156 + ... + 8861291.

It is an arithmetic number, because the mean of its divisors is an integer number (186085704).

Almost surely, 2^1205126396 is an apocalyptic number.

It is an amenable number.

1205126396 is a deficient number, since it is larger than the sum of its proper divisors (1027902052).

1205126396 is a wasteful number, since it uses less digits than its factorization.

1205126396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17722468 (or 17722466 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 1205126396 is about 34714.9304478635. The cubic root of 1205126396 is about 1064.1696440738.

The spelling of 1205126396 in words is "one billion, two hundred five million, one hundred twenty-six thousand, three hundred ninety-six".