1135145513521 has 2 divisors, whose sum is σ = 1135145513522. Its totient is φ = 1135145513520.

The previous prime is 1135145513441. The next prime is 1135145513533. The reversal of 1135145513521 is 1253155415311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 708351156496 + 426794357025 = 841636^2 + 653295^2 .

It is a cyclic number.

It is not a de Polignac number, because 1135145513521 - 2³¹ = 1132998029873 is a prime.

It is not a weakly prime, because it can be changed into another prime (1135145583521) 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, 567572756760 + 567572756761.

It is an arithmetic number, because the mean of its divisors is an integer number (567572756761).

Almost surely, 2^{1135145513521} is an apocalyptic number.

It is an amenable number.

1135145513521 is a deficient number, since it is larger than the sum of its proper divisors (1).

1135145513521 is an equidigital number, since it uses as much as digits as its factorization.

1135145513521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45000, while the sum is 37.

The spelling of 1135145513521 in words is "one trillion, one hundred thirty-five billion, one hundred forty-five million, five hundred thirteen thousand, five hundred twenty-one".