1206116257 has 8 divisors (see below), whose sum is σ = 1271181600. Its totient is φ = 1141209504.

The previous prime is 1206116231. The next prime is 1206116267. The reversal of 1206116257 is 7526116021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1206116257 - 2¹¹ = 1206114209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1206116227) 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 7 ways as a sum of consecutive naturals, for example, 23863 + ... + 54604.

It is an arithmetic number, because the mean of its divisors is an integer number (158897700).

Almost surely, 2^1206116257 is an apocalyptic number.

It is an amenable number.

1206116257 is a deficient number, since it is larger than the sum of its proper divisors (65065343).

1206116257 is an equidigital number, since it uses as much as digits as its factorization.

1206116257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79295.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 1206116257 is about 34729.1845138926. The cubic root of 1206116257 is about 1064.4609252087.

The spelling of 1206116257 in words is "one billion, two hundred six million, one hundred sixteen thousand, two hundred fifty-seven".