1143598 has 4 divisors (see below), whose sum is σ = 1715400. Its totient is φ = 571798.

The previous prime is 1143589. The next prime is 1143601. The reversal of 1143598 is 8953411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8953411 = 67 ⋅133633.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 285898 + ... + 285901.

It is an arithmetic number, because the mean of its divisors is an integer number (428850).

2^1143598 is an apocalyptic number.

1143598 is a deficient number, since it is larger than the sum of its proper divisors (571802).

1143598 is an equidigital number, since it uses as much as digits as its factorization.

1143598 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571801.

The product of its digits is 4320, while the sum is 31.

The square root of 1143598 is about 1069.3914157127. The cubic root of 1143598 is about 104.5741786914.

The spelling of 1143598 in words is "one million, one hundred forty-three thousand, five hundred ninety-eight".