1533123253 has 2 divisors, whose sum is σ = 1533123254. Its totient is φ = 1533123252.

The previous prime is 1533123233. The next prime is 1533123271. The reversal of 1533123253 is 3523213351.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1506837124 + 26286129 = 38818^2 + 5127^2 .

It is a cyclic number.

It is not a de Polignac number, because 1533123253 - 2¹³ = 1533115061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1533123233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 766561626 + 766561627.

It is an arithmetic number, because the mean of its divisors is an integer number (766561627).

Almost surely, 2^1533123253 is an apocalyptic number.

It is an amenable number.

1533123253 is a deficient number, since it is larger than the sum of its proper divisors (1).

1533123253 is an equidigital number, since it uses as much as digits as its factorization.

1533123253 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8100, while the sum is 28.

The square root of 1533123253 is about 39155.1178391791. The cubic root of 1533123253 is about 1153.0788958273.

The spelling of 1533123253 in words is "one billion, five hundred thirty-three million, one hundred twenty-three thousand, two hundred fifty-three".