1151240204 has 24 divisors (see below), whose sum is σ = 2182794768. Its totient is φ = 529159680.

The previous prime is 1151240197. The next prime is 1151240243. The reversal of 1151240204 is 4020421511.

It is a happy number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 193937 + ... + 199784.

It is an arithmetic number, because the mean of its divisors is an integer number (90949782).

Almost surely, 2^1151240204 is an apocalyptic number.

It is an amenable number.

1151240204 is a deficient number, since it is larger than the sum of its proper divisors (1031554564).

1151240204 is a wasteful number, since it uses less digits than its factorization.

1151240204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393785 (or 393783 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 1151240204 is about 33929.9307986326. The cubic root of 1151240204 is about 1048.0660406978.

Adding to 1151240204 its reverse (4020421511), we get a palindrome (5171661715).

The spelling of 1151240204 in words is "one billion, one hundred fifty-one million, two hundred forty thousand, two hundred four".