1155152444 has 12 divisors (see below), whose sum is σ = 2039407104. Its totient is φ = 572464704.

The previous prime is 1155152441. The next prime is 1155152489. The reversal of 1155152444 is 4442515511.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 1155152444.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1155152441) 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, 1277372 + ... + 1278275.

It is an arithmetic number, because the mean of its divisors is an integer number (169950592).

Almost surely, 2^1155152444 is an apocalyptic number.

It is an amenable number.

1155152444 is a deficient number, since it is larger than the sum of its proper divisors (884254660).

1155152444 is a wasteful number, since it uses less digits than its factorization.

1155152444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2555764 (or 2555762 counting only the distinct ones).

The product of its digits is 16000, while the sum is 32.

The square root of 1155152444 is about 33987.5336557391. The cubic root of 1155152444 is about 1049.2519067397.

Adding to 1155152444 its reverse (4442515511), we get a palindrome (5597667955).

The spelling of 1155152444 in words is "one billion, one hundred fifty-five million, one hundred fifty-two thousand, four hundred forty-four".