1135882421 has 6 divisors (see below), whose sum is σ = 1206629730. Its totient is φ = 1069065536.

The previous prime is 1135882331. The next prime is 1135882463. The reversal of 1135882421 is 1242885311.

It can be written as a sum of positive squares in 3 ways, for example, as 110986225 + 1024896196 = 10535^2 + 32014^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1135882421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1135882471) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1964906 + ... + 1965483.

It is an arithmetic number, because the mean of its divisors is an integer number (201104955).

Almost surely, 2^1135882421 is an apocalyptic number.

It is an amenable number.

1135882421 is a deficient number, since it is larger than the sum of its proper divisors (70747309).

1135882421 is an equidigital number, since it uses as much as digits as its factorization.

1135882421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3930423 (or 3930406 counting only the distinct ones).

The product of its digits is 15360, while the sum is 35.

The square root of 1135882421 is about 33702.8547900619. The cubic root of 1135882421 is about 1043.3846890809.

The spelling of 1135882421 in words is "one billion, one hundred thirty-five million, eight hundred eighty-two thousand, four hundred twenty-one".