1141204140 has 60 divisors (see below), whose sum is σ = 3580004736. Its totient is φ = 304320672.

The previous prime is 1141204111. The next prime is 1141204153. The reversal of 1141204140 is 414021411.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 350604 + ... + 353843.

Almost surely, 2^1141204140 is an apocalyptic number.

1141204140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1141204140 is an abundant number, since it is smaller than the sum of its proper divisors (2438800596).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1141204140 is a wasteful number, since it uses less digits than its factorization.

1141204140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 704468 (or 704457 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 1141204140 is about 33781.7131004335. The cubic root of 1141204140 is about 1045.0116036959.

Adding to 1141204140 its reverse (414021411), we get a palindrome (1555225551).

The spelling of 1141204140 in words is "one billion, one hundred forty-one million, two hundred four thousand, one hundred forty".