1151025044 has 12 divisors (see below), whose sum is σ = 2169239604. Its totient is φ = 531242304.

The previous prime is 1151025013. The next prime is 1151025047. The reversal of 1151025044 is 4405201511.

It can be written as a sum of positive squares in 2 ways, for example, as 585156100 + 565868944 = 24190^2 + 23788^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1151025047) 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, 11067497 + ... + 11067600.

It is an arithmetic number, because the mean of its divisors is an integer number (180769967).

Almost surely, 2^1151025044 is an apocalyptic number.

It is an amenable number.

1151025044 is a deficient number, since it is larger than the sum of its proper divisors (1018214560).

1151025044 is a wasteful number, since it uses less digits than its factorization.

1151025044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22135114 (or 22135112 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 1151025044 is about 33926.7599985616. The cubic root of 1151025044 is about 1048.0007441772. Note that the first 3 decimals are identical.

Adding to 1151025044 its reverse (4405201511), we get a palindrome (5556226555).

The spelling of 1151025044 in words is "one billion, one hundred fifty-one million, twenty-five thousand, forty-four".