1598081 has 4 divisors (see below), whose sum is σ = 1649664. Its totient is φ = 1546500.

The previous prime is 1598053. The next prime is 1598089. The reversal of 1598081 is 1808951.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1598081 is a prime.

It is a super-2 number, since 2×1598081² = 5107725765122, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1598089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25745 + ... + 25806.

It is an arithmetic number, because the mean of its divisors is an integer number (412416).

2^1598081 is an apocalyptic number.

It is an amenable number.

1598081 is a deficient number, since it is larger than the sum of its proper divisors (51583).

1598081 is an equidigital number, since it uses as much as digits as its factorization.

1598081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51582.

The product of its (nonzero) digits is 2880, while the sum is 32.

The square root of 1598081 is about 1264.1522851302. The cubic root of 1598081 is about 116.9139309048.

It can be divided in two parts, 15980 and 81, that added together give a palindrome (16061).

The spelling of 1598081 in words is "one million, five hundred ninety-eight thousand, eighty-one".