1230859 has 4 divisors (see below), whose sum is σ = 1406704. Its totient is φ = 1055016.

The previous prime is 1230829. The next prime is 1230863. The reversal of 1230859 is 9580321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9580321 = 941 ⋅10181.

It is a cyclic number.

It is not a de Polignac number, because 1230859 - 2⁹ = 1230347 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1230829) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87912 + ... + 87925.

It is an arithmetic number, because the mean of its divisors is an integer number (351676).

2^1230859 is an apocalyptic number.

1230859 is a deficient number, since it is larger than the sum of its proper divisors (175845).

1230859 is an equidigital number, since it uses as much as digits as its factorization.

1230859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175844.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 1230859 is about 1109.4408501583. The cubic root of 1230859 is about 107.1690633886.

It can be divided in two parts, 1 and 230859, that added together give a triangular number (230860 = T₆₇₉).

The spelling of 1230859 in words is "one million, two hundred thirty thousand, eight hundred fifty-nine".