1140135012 has 36 divisors (see below), whose sum is σ = 2883718656. Its totient is φ = 379819440.

The previous prime is 1140134987. The next prime is 1140135043. The reversal of 1140135012 is 2105310411.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 58893 + ... + 75819.

It is an arithmetic number, because the mean of its divisors is an integer number (80103296).

Almost surely, 2^1140135012 is an apocalyptic number.

1140135012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1140135012 is an abundant number, since it is smaller than the sum of its proper divisors (1743583644).

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

1140135012 is a wasteful number, since it uses less digits than its factorization.

1140135012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18808 (or 18803 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 1140135012 is about 33765.8853282422. The cubic root of 1140135012 is about 1044.6851648043.

Adding to 1140135012 its reverse (2105310411), we get a palindrome (3245445423).

It can be divided in two parts, 114013 and 5012, that added together give a square (119025 = 345²).

The spelling of 1140135012 in words is "one billion, one hundred forty million, one hundred thirty-five thousand, twelve".