1135437081 has 4 divisors (see below), whose sum is σ = 1513916112. Its totient is φ = 756958052.

The previous prime is 1135437077. The next prime is 1135437119. The reversal of 1135437081 is 1807345311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1135437081 - 2² = 1135437077 is a prime.

It is a super-2 number, since 2×1135437081² = 2578434729819601122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1135437011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 189239511 + ... + 189239516.

It is an arithmetic number, because the mean of its divisors is an integer number (378479028).

Almost surely, 2^1135437081 is an apocalyptic number.

It is an amenable number.

1135437081 is a deficient number, since it is larger than the sum of its proper divisors (378479031).

1135437081 is an equidigital number, since it uses as much as digits as its factorization.

1135437081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378479030.

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 1135437081 is about 33696.2472836368. The cubic root of 1135437081 is about 1043.2483129713.

The spelling of 1135437081 in words is "one billion, one hundred thirty-five million, four hundred thirty-seven thousand, eighty-one".