1151001044 has 12 divisors (see below), whose sum is σ = 2036884500. Its totient is φ = 569034048.

The previous prime is 1151001043. The next prime is 1151001079. The reversal of 1151001044 is 4401001511.

It can be written as a sum of positive squares in 2 ways, for example, as 97219600 + 1053781444 = 9860^2 + 32462^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1151001041) 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, 1616219 + ... + 1616930.

It is an arithmetic number, because the mean of its divisors is an integer number (169740375).

Almost surely, 2^1151001044 is an apocalyptic number.

It is an amenable number.

1151001044 is a deficient number, since it is larger than the sum of its proper divisors (885883456).

1151001044 is a wasteful number, since it uses less digits than its factorization.

1151001044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3233242 (or 3233240 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 1151001044 is about 33926.4062936233. The cubic root of 1151001044 is about 1047.9934601791.

Adding to 1151001044 its reverse (4401001511), we get a palindrome (5552002555).

The spelling of 1151001044 in words is "one billion, one hundred fifty-one million, one thousand, forty-four".