1135401771 has 32 divisors (see below), whose sum is σ = 1748533248. Its totient is φ = 641941920.

The previous prime is 1135401769. The next prime is 1135401779. The reversal of 1135401771 is 1771045311.

It is not a de Polignac number, because 1135401771 - 2¹ = 1135401769 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1135401779) 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 31 ways as a sum of consecutive naturals, for example, 921726 + ... + 922956.

It is an arithmetic number, because the mean of its divisors is an integer number (54641664).

Almost surely, 2^1135401771 is an apocalyptic number.

1135401771 is a deficient number, since it is larger than the sum of its proper divisors (613131477).

1135401771 is a wasteful number, since it uses less digits than its factorization.

1135401771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1671.

The product of its (nonzero) digits is 2940, while the sum is 30.

The square root of 1135401771 is about 33695.7233339782. The cubic root of 1135401771 is about 1043.2374984928.

The spelling of 1135401771 in words is "one billion, one hundred thirty-five million, four hundred one thousand, seven hundred seventy-one".