1268932143 has 8 divisors (see below), whose sum is σ = 1692101808. Its totient is φ = 845858624.

The previous prime is 1268932141. The next prime is 1268932169. The reversal of 1268932143 is 3412398621.

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 1268932143 - 2¹ = 1268932141 is a prime.

It is a super-2 number, since 2×1268932143² = 3220377567077144898, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1268932141) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 16555 + ... + 53027.

It is an arithmetic number, because the mean of its divisors is an integer number (211512726).

Almost surely, 2^1268932143 is an apocalyptic number.

1268932143 is a deficient number, since it is larger than the sum of its proper divisors (423169665).

1268932143 is a wasteful number, since it uses less digits than its factorization.

1268932143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48073.

The product of its digits is 62208, while the sum is 39.

The square root of 1268932143 is about 35622.0738166660. The cubic root of 1268932143 is about 1082.6285262893.

The spelling of 1268932143 in words is "one billion, two hundred sixty-eight million, nine hundred thirty-two thousand, one hundred forty-three".