1199120449 has 8 divisors (see below), whose sum is σ = 1313438760. Its totient is φ = 1089666816.

The previous prime is 1199120443. The next prime is 1199120467. The reversal of 1199120449 is 9440219911.

It can be written as a sum of positive squares in 4 ways, for example, as 370832049 + 828288400 = 19257^2 + 28780^2 .

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

It is not a de Polignac number, because 1199120449 - 2³ = 1199120441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1199120441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1215654 + ... + 1216639.

It is an arithmetic number, because the mean of its divisors is an integer number (164179845).

Almost surely, 2^1199120449 is an apocalyptic number.

It is an amenable number.

1199120449 is a deficient number, since it is larger than the sum of its proper divisors (114318311).

1199120449 is a wasteful number, since it uses less digits than its factorization.

1199120449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2432339.

The product of its (nonzero) digits is 23328, while the sum is 40.

The square root of 1199120449 is about 34628.3185990888. The cubic root of 1199120449 is about 1062.3988772780.

The spelling of 1199120449 in words is "one billion, one hundred ninety-nine million, one hundred twenty thousand, four hundred forty-nine".