1140212144 has 20 divisors (see below), whose sum is σ = 2210052000. Its totient is φ = 569876160.

The previous prime is 1140212131. The next prime is 1140212153. The reversal of 1140212144 is 4412120411.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30857 + ... + 56855.

It is an arithmetic number, because the mean of its divisors is an integer number (110502600).

Almost surely, 2^1140212144 is an apocalyptic number.

It is an amenable number.

1140212144 is a deficient number, since it is larger than the sum of its proper divisors (1069839856).

1140212144 is a wasteful number, since it uses less digits than its factorization.

1140212144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28748 (or 28742 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 1140212144 is about 33767.0274676348. The cubic root of 1140212144 is about 1044.7087224936.

Adding to 1140212144 its reverse (4412120411), we get a palindrome (5552332555).

The spelling of 1140212144 in words is "one billion, one hundred forty million, two hundred twelve thousand, one hundred forty-four".