1141020540 has 96 divisors (see below), whose sum is σ = 3872574720. Its totient is φ = 276609600.

The previous prime is 1141020527. The next prime is 1141020557. The reversal of 1141020540 is 450201411.

1141020540 is a `hidden beast` number, since 11 + 410 + 205 + 40 = 666.

It is a super-3 number, since 3×1141020540³ (a number of 28 digits) contains 333 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 90106 + ... + 101985.

It is an arithmetic number, because the mean of its divisors is an integer number (40339320).

Almost surely, 2^1141020540 is an apocalyptic number.

1141020540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1141020540 is an abundant number, since it is smaller than the sum of its proper divisors (2731554180).

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

1141020540 is a wasteful number, since it uses less digits than its factorization.

1141020540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192120 (or 192112 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 1141020540 is about 33778.9955445688. The cubic root of 1141020540 is about 1044.9555592618.

Adding to 1141020540 its reverse (450201411), we get a palindrome (1591221951).

The spelling of 1141020540 in words is "one billion, one hundred forty-one million, twenty thousand, five hundred forty".