1230054533 has 4 divisors (see below), whose sum is σ = 1302410700. Its totient is φ = 1157698368.

The previous prime is 1230054523. The next prime is 1230054577. The reversal of 1230054533 is 3354500321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3354500321 = 41 ⋅81817081.

It can be written as a sum of positive squares in 2 ways, for example, as 844599844 + 385454689 = 29062^2 + 19633^2 .

It is not a de Polignac number, because 1230054533 - 2¹⁰ = 1230053509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230054503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36178058 + ... + 36178091.

It is an arithmetic number, because the mean of its divisors is an integer number (325602675).

Almost surely, 2^1230054533 is an apocalyptic number.

It is an amenable number.

1230054533 is a deficient number, since it is larger than the sum of its proper divisors (72356167).

1230054533 is an equidigital number, since it uses as much as digits as its factorization.

1230054533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72356166.

The product of its (nonzero) digits is 5400, while the sum is 26.

The square root of 1230054533 is about 35072.1332827075. The cubic root of 1230054533 is about 1071.4571038488.

Adding to 1230054533 its reverse (3354500321), we get a palindrome (4584554854).

The spelling of 1230054533 in words is "one billion, two hundred thirty million, fifty-four thousand, five hundred thirty-three".