1135544551 has 2 divisors, whose sum is σ = 1135544552. Its totient is φ = 1135544550.

The previous prime is 1135544537. The next prime is 1135544593. The reversal of 1135544551 is 1554455311.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1135544551 - 2¹⁷ = 1135413479 is a prime.

It is a super-2 number, since 2×1135544551² = 2578922854611583202, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1135544351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 567772275 + 567772276.

It is an arithmetic number, because the mean of its divisors is an integer number (567772276).

Almost surely, 2^1135544551 is an apocalyptic number.

1135544551 is a deficient number, since it is larger than the sum of its proper divisors (1).

1135544551 is an equidigital number, since it uses as much as digits as its factorization.

1135544551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30000, while the sum is 34.

The square root of 1135544551 is about 33697.8419338687. The cubic root of 1135544551 is about 1043.2812266868.

Adding to 1135544551 its reverse (1554455311), we get a palindrome (2689999862).

The spelling of 1135544551 in words is "one billion, one hundred thirty-five million, five hundred forty-four thousand, five hundred fifty-one".