1205153255 has 8 divisors (see below), whose sum is σ = 1446652224. Its totient is φ = 963810400.

The previous prime is 1205153227. The next prime is 1205153263. The reversal of 1205153255 is 5523515021.

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

It is not a de Polignac number, because 1205153255 - 2⁸ = 1205152999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21311 + ... + 53520.

It is an arithmetic number, because the mean of its divisors is an integer number (180831528).

Almost surely, 2^1205153255 is an apocalyptic number.

1205153255 is a deficient number, since it is larger than the sum of its proper divisors (241498969).

1205153255 is an equidigital number, since it uses as much as digits as its factorization.

1205153255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78057.

The product of its (nonzero) digits is 7500, while the sum is 29.

The square root of 1205153255 is about 34715.3172965479. The cubic root of 1205153255 is about 1064.1775498338.

Adding to 1205153255 its reverse (5523515021), we get a palindrome (6728668276).

The spelling of 1205153255 in words is "one billion, two hundred five million, one hundred fifty-three thousand, two hundred fifty-five".