1359999 has 12 divisors (see below), whose sum is σ = 1980576. Its totient is φ = 899232.

The previous prime is 1359997. The next prime is 1360027. The reversal of 1359999 is 9999531.

It is not a de Polignac number, because 1359999 - 2¹ = 1359997 is a prime.

1359999 is a modest number, since divided by 9999 gives 135 as remainder.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1359991) 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 11 ways as a sum of consecutive naturals, for example, 682 + ... + 1784.

It is an arithmetic number, because the mean of its divisors is an integer number (165048).

2^1359999 is an apocalyptic number.

1359999 is a deficient number, since it is larger than the sum of its proper divisors (620577).

1359999 is a wasteful number, since it uses less digits than its factorization.

1359999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1246 (or 1243 counting only the distinct ones).

The product of its digits is 98415, while the sum is 45.

The square root of 1359999 is about 1166.1899502225. The cubic root of 1359999 is about 110.7931379799.

It can be divided in two parts, 1 and 359999, that added together give a square (360000 = 600²).

The spelling of 1359999 in words is "one million, three hundred fifty-nine thousand, nine hundred ninety-nine".