1155735361 has 16 divisors (see below), whose sum is σ = 1336521600. Its totient is φ = 987713280.

The previous prime is 1155735359. The next prime is 1155735379. The reversal of 1155735361 is 1635375511.

It is a cyclic number.

It is not a de Polignac number, because 1155735361 - 2¹ = 1155735359 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1155735361.

It is not an unprimeable number, because it can be changed into a prime (1155735391) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 183340 + ... + 189538.

It is an arithmetic number, because the mean of its divisors is an integer number (83532600).

Almost surely, 2^1155735361 is an apocalyptic number.

1155735361 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1155735361 is a deficient number, since it is larger than the sum of its proper divisors (180786239).

1155735361 is a wasteful number, since it uses less digits than its factorization.

1155735361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7224.

The product of its digits is 47250, while the sum is 37.

The square root of 1155735361 is about 33996.1080272434. The cubic root of 1155735361 is about 1049.4283694295.

The spelling of 1155735361 in words is "one billion, one hundred fifty-five million, seven hundred thirty-five thousand, three hundred sixty-one".