1021136533 has 2 divisors, whose sum is σ = 1021136534. Its totient is φ = 1021136532.

The previous prime is 1021136527. The next prime is 1021136537. The reversal of 1021136533 is 3356311201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 997106929 + 24029604 = 31577^2 + 4902^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1021136533 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1021136498 and 1021136507.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1021136537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510568266 + 510568267.

It is an arithmetic number, because the mean of its divisors is an integer number (510568267).

Almost surely, 2^1021136533 is an apocalyptic number.

It is an amenable number.

1021136533 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021136533 is an equidigital number, since it uses as much as digits as its factorization.

1021136533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 1021136533 is about 31955.2270059219. The cubic root of 1021136533 is about 1006.9964465760.

Adding to 1021136533 its reverse (3356311201), we get a palindrome (4377447734).

The spelling of 1021136533 in words is "one billion, twenty-one million, one hundred thirty-six thousand, five hundred thirty-three".