1599955 has 16 divisors (see below), whose sum is σ = 2324160. Its totient is φ = 1032192.

The previous prime is 1599937. The next prime is 1599977. The reversal of 1599955 is 5599951.

It is a happy number.

It is not a de Polignac number, because 1599955 - 2⁷ = 1599827 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 750 + ... + 1939.

It is an arithmetic number, because the mean of its divisors is an integer number (145260).

2^1599955 is an apocalyptic number.

1599955 is a deficient number, since it is larger than the sum of its proper divisors (724205).

1599955 is a wasteful number, since it uses less digits than its factorization.

1599955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2718.

The product of its digits is 91125, while the sum is 43.

The square root of 1599955 is about 1264.8932761304. The cubic root of 1599955 is about 116.9596130116.

It can be divided in two parts, 159995 and 5, that added together give a 4-th power (160000 = 20⁴).

The spelling of 1599955 in words is "one million, five hundred ninety-nine thousand, nine hundred fifty-five".