1099709512 has 48 divisors (see below), whose sum is σ = 2370718800. Its totient is φ = 472975200.

The previous prime is 1099709509. The next prime is 1099709519. The reversal of 1099709512 is 2159079901.

It is a super-2 number, since 2×1099709512² = 2418722021566556288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1099709519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1355587 + ... + 1356397.

It is an arithmetic number, because the mean of its divisors is an integer number (49389975).

Almost surely, 2^1099709512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1099709512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1185359400).

1099709512 is an abundant number, since it is smaller than the sum of its proper divisors (1271009288).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1099709512 is an equidigital number, since it uses as much as digits as its factorization.

1099709512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1658 (or 843 counting only the distinct ones).

The product of its (nonzero) digits is 51030, while the sum is 43.

The square root of 1099709512 is about 33161.8683430231. The cubic root of 1099709512 is about 1032.1892392787.

The spelling of 1099709512 in words is "one billion, ninety-nine million, seven hundred nine thousand, five hundred twelve".