1140005144 has 32 divisors (see below), whose sum is σ = 2153088000. Its totient is φ = 565864992.

The previous prime is 1140005137. The next prime is 1140005147. The reversal of 1140005144 is 4415000411.

It is a super-2 number, since 2×1140005144² = 2599223456692921472, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1140005147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 800417 + ... + 801839.

It is an arithmetic number, because the mean of its divisors is an integer number (67284000).

Almost surely, 2^1140005144 is an apocalyptic number.

It is an amenable number.

1140005144 is a deficient number, since it is larger than the sum of its proper divisors (1013082856).

1140005144 is a wasteful number, since it uses less digits than its factorization.

1140005144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2087 (or 2083 counting only the distinct ones).

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

The square root of 1140005144 is about 33763.9622082480. The cubic root of 1140005144 is about 1044.6454980622.

Adding to 1140005144 its reverse (4415000411), we get a palindrome (5555005555).

The spelling of 1140005144 in words is "one billion, one hundred forty million, five thousand, one hundred forty-four".