1135505651 has 4 divisors (see below), whose sum is σ = 1297720752. Its totient is φ = 973290552.

The previous prime is 1135505639. The next prime is 1135505659. The reversal of 1135505651 is 1565055311.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1135505651 - 2⁶ = 1135505587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1135505659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81107540 + ... + 81107553.

It is an arithmetic number, because the mean of its divisors is an integer number (324430188).

Almost surely, 2^1135505651 is an apocalyptic number.

1135505651 is a deficient number, since it is larger than the sum of its proper divisors (162215101).

1135505651 is an equidigital number, since it uses as much as digits as its factorization.

1135505651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162215100.

The product of its (nonzero) digits is 11250, while the sum is 32.

The square root of 1135505651 is about 33697.2647406284. The cubic root of 1135505651 is about 1043.2693134295.

The spelling of 1135505651 in words is "one billion, one hundred thirty-five million, five hundred five thousand, six hundred fifty-one".