1293999 has 16 divisors (see below), whose sum is σ = 2019072. Its totient is φ = 721728.

The previous prime is 1293983. The next prime is 1294019. The reversal of 1293999 is 9993921.

It is a happy number.

It is not a de Polignac number, because 1293999 - 2⁴ = 1293983 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1293999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1293949) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 187 + ... + 1619.

It is an arithmetic number, because the mean of its divisors is an integer number (126192).

2^1293999 is an apocalyptic number.

1293999 is a deficient number, since it is larger than the sum of its proper divisors (725073).

1293999 is a wasteful number, since it uses less digits than its factorization.

1293999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1486.

The product of its digits is 39366, while the sum is 42.

The square root of 1293999 is about 1137.5407685002. The cubic root of 1293999 is about 108.9710946556.

The spelling of 1293999 in words is "one million, two hundred ninety-three thousand, nine hundred ninety-nine".