1230153555 has 8 divisors (see below), whose sum is σ = 1968245712. Its totient is φ = 656081888.

The previous prime is 1230153553. The next prime is 1230153559. The reversal of 1230153555 is 5553510321.

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 1230153555 - 2¹ = 1230153553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1230153553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41005104 + ... + 41005133.

It is an arithmetic number, because the mean of its divisors is an integer number (246030714).

Almost surely, 2^1230153555 is an apocalyptic number.

1230153555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1230153555 is a deficient number, since it is larger than the sum of its proper divisors (738092157).

1230153555 is an equidigital number, since it uses as much as digits as its factorization.

1230153555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82010245.

The product of its (nonzero) digits is 11250, while the sum is 30.

The square root of 1230153555 is about 35073.5449448726. The cubic root of 1230153555 is about 1071.4858546008.

Adding to 1230153555 its reverse (5553510321), we get a palindrome (6783663876).

It can be divided in two parts, 12301 and 53555, that added together give a palindrome (65856).

The spelling of 1230153555 in words is "one billion, two hundred thirty million, one hundred fifty-three thousand, five hundred fifty-five".