1133850921 has 16 divisors (see below), whose sum is σ = 1829407104. Its totient is φ = 609801984.

The previous prime is 1133850899. The next prime is 1133850931. The reversal of 1133850921 is 1290583311.

It is not a de Polignac number, because 1133850921 - 2⁹ = 1133850409 is a prime.

It is a super-2 number, since 2×1133850921² = 2571235822105096482, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1133850931) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1587670 + ... + 1588383.

It is an arithmetic number, because the mean of its divisors is an integer number (114337944).

Almost surely, 2^1133850921 is an apocalyptic number.

It is an amenable number.

1133850921 is a deficient number, since it is larger than the sum of its proper divisors (695556183).

1133850921 is a wasteful number, since it uses less digits than its factorization.

1133850921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3176080.

The product of its (nonzero) digits is 6480, while the sum is 33.

The square root of 1133850921 is about 33672.7029060632. The cubic root of 1133850921 is about 1042.7622945871.

It can be divided in two parts, 1133850 and 921, that added together give a triangular number (1134771 = T₁₅₀₆).

The spelling of 1133850921 in words is "one billion, one hundred thirty-three million, eight hundred fifty thousand, nine hundred twenty-one".