1194151449 has 4 divisors (see below), whose sum is σ = 1592201936. Its totient is φ = 796100964.

The previous prime is 1194151391. The next prime is 1194151457. The reversal of 1194151449 is 9441514911.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-1194151449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1194151459) 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, 199025239 + ... + 199025244.

It is an arithmetic number, because the mean of its divisors is an integer number (398050484).

Almost surely, 2^1194151449 is an apocalyptic number.

It is an amenable number.

1194151449 is a deficient number, since it is larger than the sum of its proper divisors (398050487).

1194151449 is an equidigital number, since it uses as much as digits as its factorization.

1194151449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398050486.

The product of its digits is 25920, while the sum is 39.

The square root of 1194151449 is about 34556.4964804015. The cubic root of 1194151449 is about 1060.9293644160.

The spelling of 1194151449 in words is "one billion, one hundred ninety-four million, one hundred fifty-one thousand, four hundred forty-nine".