1233555 has 8 divisors (see below), whose sum is σ = 1973712. Its totient is φ = 657888.

The previous prime is 1233539. The next prime is 1233563. The reversal of 1233555 is 5553321.

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

It is not a de Polignac number, because 1233555 - 2⁴ = 1233539 is a prime.

It is a plaindrome in base 10.

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, 41104 + ... + 41133.

It is an arithmetic number, because the mean of its divisors is an integer number (246714).

2^1233555 is an apocalyptic number.

1233555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1233555 is a deficient number, since it is larger than the sum of its proper divisors (740157).

1233555 is an equidigital number, since it uses as much as digits as its factorization.

1233555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82245.

The product of its digits is 2250, while the sum is 24.

The square root of 1233555 is about 1110.6552120258. The cubic root of 1233555 is about 107.2472519006.

Adding to 1233555 its reverse (5553321), we get a palindrome (6786876).

The spelling of 1233555 in words is "one million, two hundred thirty-three thousand, five hundred fifty-five".