1523535340133 has 2 divisors, whose sum is σ = 1523535340134. Its totient is φ = 1523535340132.

The previous prime is 1523535340043. The next prime is 1523535340139. The reversal of 1523535340133 is 3310435353251.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1201255456324 + 322279883809 = 1096018^2 + 567697^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1523535340133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1523535340139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 761767670066 + 761767670067.

It is an arithmetic number, because the mean of its divisors is an integer number (761767670067).

Almost surely, 2^{1523535340133} is an apocalyptic number.

It is an amenable number.

1523535340133 is a deficient number, since it is larger than the sum of its proper divisors (1).

1523535340133 is an equidigital number, since it uses as much as digits as its factorization.

1523535340133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 243000, while the sum is 38.

The spelling of 1523535340133 in words is "one trillion, five hundred twenty-three billion, five hundred thirty-five million, three hundred forty thousand, one hundred thirty-three".