1268009213 has 8 divisors (see below), whose sum is σ = 1377803520. Its totient is φ = 1162520640.

The previous prime is 1268009201. The next prime is 1268009219. The reversal of 1268009213 is 3129008621.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1268009213 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1268009213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1268009219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1075820 + ... + 1076997.

It is an arithmetic number, because the mean of its divisors is an integer number (172225440).

Almost surely, 2^1268009213 is an apocalyptic number.

It is an amenable number.

1268009213 is a deficient number, since it is larger than the sum of its proper divisors (109794307).

1268009213 is a wasteful number, since it uses less digits than its factorization.

1268009213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2152867.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 1268009213 is about 35609.1169927029. The cubic root of 1268009213 is about 1082.3659872467.

The spelling of 1268009213 in words is "one billion, two hundred sixty-eight million, nine thousand, two hundred thirteen".