1206113997 has 16 divisors (see below), whose sum is σ = 1830624768. Its totient is φ = 699196080.

The previous prime is 1206113989. The next prime is 1206113999. The reversal of 1206113997 is 7993116021.

It is a happy number.

It is not a de Polignac number, because 1206113997 - 2³ = 1206113989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1206113999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 793783 + ... + 795300.

It is an arithmetic number, because the mean of its divisors is an integer number (114414048).

Almost surely, 2^1206113997 is an apocalyptic number.

It is an amenable number.

1206113997 is a deficient number, since it is larger than the sum of its proper divisors (624510771).

1206113997 is a wasteful number, since it uses less digits than its factorization.

1206113997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1589120.

The product of its (nonzero) digits is 20412, while the sum is 39.

The square root of 1206113997 is about 34729.1519764016. The cubic root of 1206113997 is about 1064.4602603520.

The spelling of 1206113997 in words is "one billion, two hundred six million, one hundred thirteen thousand, nine hundred ninety-seven".