1230105153 has 4 divisors (see below), whose sum is σ = 1640140208. Its totient is φ = 820070100.

The previous prime is 1230105139. The next prime is 1230105161. The reversal of 1230105153 is 3515010321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1230105153 - 2⁹ = 1230104641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1230105853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 205017523 + ... + 205017528.

It is an arithmetic number, because the mean of its divisors is an integer number (410035052).

Almost surely, 2^1230105153 is an apocalyptic number.

It is an amenable number.

1230105153 is a deficient number, since it is larger than the sum of its proper divisors (410035055).

1230105153 is an equidigital number, since it uses as much as digits as its factorization.

1230105153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410035054.

The product of its (nonzero) digits is 450, while the sum is 21.

The square root of 1230105153 is about 35072.8549308436. The cubic root of 1230105153 is about 1071.4718014126.

Adding to 1230105153 its reverse (3515010321), we get a palindrome (4745115474).

The spelling of 1230105153 in words is "one billion, two hundred thirty million, one hundred five thousand, one hundred fifty-three".