1268099 has 4 divisors (see below), whose sum is σ = 1449264. Its totient is φ = 1086936.

The previous prime is 1268093. The next prime is 1268119. The reversal of 1268099 is 9908621.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1268099 - 2²⁰ = 219523 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1268093) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90572 + ... + 90585.

It is an arithmetic number, because the mean of its divisors is an integer number (362316).

2^1268099 is an apocalyptic number.

1268099 is a deficient number, since it is larger than the sum of its proper divisors (181165).

1268099 is an equidigital number, since it uses as much as digits as its factorization.

1268099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181164.

The product of its (nonzero) digits is 7776, while the sum is 35.

The square root of 1268099 is about 1126.0990187368. The cubic root of 1268099 is about 108.2391533880.

It can be divided in two parts, 12680 and 99, that multiplied together give a triangular number (1255320 = T₁₅₈₄).

The spelling of 1268099 in words is "one million, two hundred sixty-eight thousand, ninety-nine".