1268019 has 6 divisors (see below), whose sum is σ = 1831596. Its totient is φ = 845340.

The previous prime is 1268017. The next prime is 1268039. The reversal of 1268019 is 9108621.

It is not a de Polignac number, because 1268019 - 2¹ = 1268017 is a prime.

It is a super-2 number, since 2×1268019² = 3215744368722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1267983 and 1268001.

It is not an unprimeable number, because it can be changed into a prime (1268011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 70437 + ... + 70454.

It is an arithmetic number, because the mean of its divisors is an integer number (305266).

2^1268019 is an apocalyptic number.

1268019 is a deficient number, since it is larger than the sum of its proper divisors (563577).

1268019 is a wasteful number, since it uses less digits than its factorization.

1268019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140897 (or 140894 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 1268019 is about 1126.0634973215. The cubic root of 1268019 is about 108.2368771950.

The spelling of 1268019 in words is "one million, two hundred sixty-eight thousand, nineteen".