1272268206 has 24 divisors (see below), whose sum is σ = 3007179864. Its totient is φ = 385535760.

The previous prime is 1272268189. The next prime is 1272268223. The reversal of 1272268206 is 6028622721.

It is an interprime number because it is at equal distance from previous prime (1272268189) and next prime (1272268223).

It is a super-3 number, since 3×1272268206³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 3212601 + ... + 3212996.

It is an arithmetic number, because the mean of its divisors is an integer number (125299161).

Almost surely, 2^1272268206 is an apocalyptic number.

1272268206 is an abundant number, since it is smaller than the sum of its proper divisors (1734911658).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1272268206 is a wasteful number, since it uses less digits than its factorization.

1272268206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6425616 (or 6425613 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 1272268206 is about 35668.8688634781. The cubic root of 1272268206 is about 1083.5764510195.

The spelling of 1272268206 in words is "one billion, two hundred seventy-two million, two hundred sixty-eight thousand, two hundred six".