1201613266 has 32 divisors (see below), whose sum is σ = 2076152832. Its totient is φ = 510935040.

The previous prime is 1201613249. The next prime is 1201613291. The reversal of 1201613266 is 6623161021.

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 15 ways as a sum of consecutive naturals, for example, 1212031 + ... + 1213021.

It is an arithmetic number, because the mean of its divisors is an integer number (64879776).

Almost surely, 2^1201613266 is an apocalyptic number.

1201613266 is a deficient number, since it is larger than the sum of its proper divisors (874539566).

1201613266 is a wasteful number, since it uses less digits than its factorization.

1201613266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1594.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 1201613266 is about 34664.2938194333. The cubic root of 1201613266 is about 1063.1345645330.

Adding to 1201613266 its reverse (6623161021), we get a palindrome (7824774287).

The spelling of 1201613266 in words is "one billion, two hundred one million, six hundred thirteen thousand, two hundred sixty-six".