1099159145 has 16 divisors (see below), whose sum is σ = 1508227968. Its totient is φ = 753304320.

The previous prime is 1099159141. The next prime is 1099159151. The reversal of 1099159145 is 5419519901.

It is not a de Polignac number, because 1099159145 - 2² = 1099159141 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1099159096 and 1099159105.

It is not an unprimeable number, because it can be changed into a prime (1099159141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67217 + ... + 81953.

It is an arithmetic number, because the mean of its divisors is an integer number (94264248).

Almost surely, 2^1099159145 is an apocalyptic number.

It is an amenable number.

1099159145 is a deficient number, since it is larger than the sum of its proper divisors (409068823).

1099159145 is a wasteful number, since it uses less digits than its factorization.

1099159145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16880.

The product of its (nonzero) digits is 72900, while the sum is 44.

The square root of 1099159145 is about 33153.5691140486. The cubic root of 1099159145 is about 1032.0170187411.

The spelling of 1099159145 in words is "one billion, ninety-nine million, one hundred fifty-nine thousand, one hundred forty-five".