1153153444 has 12 divisors (see below), whose sum is σ = 2018277324. Its totient is φ = 576502784.

The previous prime is 1153153439. The next prime is 1153153447. The reversal of 1153153444 is 4443513511.

It can be written as a sum of positive squares in 2 ways, for example, as 526151844 + 627001600 = 22938^2 + 25040^2 .

It is a super-2 number, since 2×1153153444² = 2659525730818122272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1153153447) 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, 31812 + ... + 57604.

It is an arithmetic number, because the mean of its divisors is an integer number (168189777).

Almost surely, 2^1153153444 is an apocalyptic number.

It is an amenable number.

1153153444 is a deficient number, since it is larger than the sum of its proper divisors (865123880).

1153153444 is a wasteful number, since it uses less digits than its factorization.

1153153444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36974 (or 36972 counting only the distinct ones).

The product of its digits is 14400, while the sum is 31.

The square root of 1153153444 is about 33958.1130806763. The cubic root of 1153153444 is about 1048.6463111683.

Adding to 1153153444 its reverse (4443513511), we get a palindrome (5596666955).

The spelling of 1153153444 in words is "one billion, one hundred fifty-three million, one hundred fifty-three thousand, four hundred forty-four".