1205072650 has 24 divisors (see below), whose sum is σ = 2242829664. Its totient is φ = 481729200.

The previous prime is 1205072623. The next prime is 1205072651. The reversal of 1205072650 is 562705021.

1205072650 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (1205072651) 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 11 ways as a sum of consecutive naturals, for example, 84969 + ... + 98131.

It is an arithmetic number, because the mean of its divisors is an integer number (93451236).

Almost surely, 2^1205072650 is an apocalyptic number.

1205072650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1205072650 is a deficient number, since it is larger than the sum of its proper divisors (1037757014).

1205072650 is a wasteful number, since it uses less digits than its factorization.

1205072650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15006 (or 15001 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 1205072650 is about 34714.1563342680. The cubic root of 1205072650 is about 1064.1538239595.

Adding to 1205072650 its reverse (562705021), we get a palindrome (1767777671).

The spelling of 1205072650 in words is "one billion, two hundred five million, seventy-two thousand, six hundred fifty".