1099138395 has 8 divisors (see below), whose sum is σ = 1758621456. Its totient is φ = 586207136.

The previous prime is 1099138393. The next prime is 1099138423. The reversal of 1099138395 is 5938319901.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1099138395 - 2¹ = 1099138393 is a prime.

It is a super-2 number, since 2×1099138395² = 2416210422726352050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1099138393) 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 7 ways as a sum of consecutive naturals, for example, 36637932 + ... + 36637961.

It is an arithmetic number, because the mean of its divisors is an integer number (219827682).

Almost surely, 2^1099138395 is an apocalyptic number.

1099138395 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1099138395 is a deficient number, since it is larger than the sum of its proper divisors (659483061).

1099138395 is an equidigital number, since it uses as much as digits as its factorization.

1099138395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73275901.

The product of its (nonzero) digits is 262440, while the sum is 48.

The square root of 1099138395 is about 33153.2561749219. The cubic root of 1099138395 is about 1032.0105245381.

The spelling of 1099138395 in words is "one billion, ninety-nine million, one hundred thirty-eight thousand, three hundred ninety-five".