1099670159 has 4 divisors (see below), whose sum is σ = 1256765904. Its totient is φ = 942574416.

The previous prime is 1099670149. The next prime is 1099670171. The reversal of 1099670159 is 9510769901.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1099670159 - 2⁸ = 1099669903 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 (1099670149) 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, 78547862 + ... + 78547875.

It is an arithmetic number, because the mean of its divisors is an integer number (314191476).

Almost surely, 2^1099670159 is an apocalyptic number.

1099670159 is a deficient number, since it is larger than the sum of its proper divisors (157095745).

1099670159 is an equidigital number, since it uses as much as digits as its factorization.

1099670159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157095744.

The product of its (nonzero) digits is 153090, while the sum is 47.

The square root of 1099670159 is about 33161.2749905669. The cubic root of 1099670159 is about 1032.1769268674.

The spelling of 1099670159 in words is "one billion, ninety-nine million, six hundred seventy thousand, one hundred fifty-nine".