1093449851 has 4 divisors (see below), whose sum is σ = 1177561392. Its totient is φ = 1009338312.

The previous prime is 1093449839. The next prime is 1093449853. The reversal of 1093449851 is 1589443901.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1589443901 = 173 ⋅9187537.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1093449851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1093449853) 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, 42055751 + ... + 42055776.

It is an arithmetic number, because the mean of its divisors is an integer number (294390348).

Almost surely, 2^1093449851 is an apocalyptic number.

1093449851 is a deficient number, since it is larger than the sum of its proper divisors (84111541).

1093449851 is an equidigital number, since it uses as much as digits as its factorization.

1093449851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84111540.

The product of its (nonzero) digits is 155520, while the sum is 44.

The square root of 1093449851 is about 33067.3532506005. The cubic root of 1093449851 is about 1030.2270687364.

The spelling of 1093449851 in words is "one billion, ninety-three million, four hundred forty-nine thousand, eight hundred fifty-one".