1135023156 has 36 divisors (see below), whose sum is σ = 3037857732. Its totient is φ = 356085504.

The previous prime is 1135023133. The next prime is 1135023161. The reversal of 1135023156 is 6513205311.

1135023156 is a `hidden beast` number, since 1 + 1 + 3 + 502 + 3 + 156 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 886014756 + 249008400 = 29766^2 + 15780^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 926695 + ... + 927918.

It is an arithmetic number, because the mean of its divisors is an integer number (84384937).

Almost surely, 2^1135023156 is an apocalyptic number.

It is an amenable number.

1135023156 is an abundant number, since it is smaller than the sum of its proper divisors (1902834576).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1135023156 is a wasteful number, since it uses less digits than its factorization.

1135023156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1854640 (or 1854635 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 1135023156 is about 33690.1047193386. The cubic root of 1135023156 is about 1043.1215250732.

Adding to 1135023156 its reverse (6513205311), we get a palindrome (7648228467).

The spelling of 1135023156 in words is "one billion, one hundred thirty-five million, twenty-three thousand, one hundred fifty-six".