1230555 has 8 divisors (see below), whose sum is σ = 1968912. Its totient is φ = 656288.

The previous prime is 1230547. The next prime is 1230571. The reversal of 1230555 is 5550321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1230555 - 2³ = 1230547 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41004 + ... + 41033.

It is an arithmetic number, because the mean of its divisors is an integer number (246114).

2^1230555 is an apocalyptic number.

1230555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1230555 is a deficient number, since it is larger than the sum of its proper divisors (738357).

1230555 is an equidigital number, since it uses as much as digits as its factorization.

1230555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82045.

The product of its (nonzero) digits is 750, while the sum is 21.

The square root of 1230555 is about 1109.3038357456. The cubic root of 1230555 is about 107.1602397194.

Adding to 1230555 its reverse (5550321), we get a palindrome (6780876).

The spelling of 1230555 in words is "one million, two hundred thirty thousand, five hundred fifty-five".