1533023540249 has 2 divisors, whose sum is σ = 1533023540250. Its totient is φ = 1533023540248.

The previous prime is 1533023540197. The next prime is 1533023540273. The reversal of 1533023540249 is 9420453203351.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 792933259024 + 740090281225 = 890468^2 + 860285^2 .

It is an emirp because it is prime and its reverse (9420453203351) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1533023540249 - 2²⁰ = 1533022491673 is a prime.

It is a super-2 number, since 2×1533023540249² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1533023540149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 766511770124 + 766511770125.

It is an arithmetic number, because the mean of its divisors is an integer number (766511770125).

Almost surely, 2^{1533023540249} is an apocalyptic number.

It is an amenable number.

1533023540249 is a deficient number, since it is larger than the sum of its proper divisors (1).

1533023540249 is an equidigital number, since it uses as much as digits as its factorization.

1533023540249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 388800, while the sum is 41.

The spelling of 1533023540249 in words is "one trillion, five hundred thirty-three billion, twenty-three million, five hundred forty thousand, two hundred forty-nine".