1201132140 has 48 divisors (see below), whose sum is σ = 3621877728. Its totient is φ = 295663104.

The previous prime is 1201132129. The next prime is 1201132157. The reversal of 1201132140 is 412311021.

1201132140 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 769177 + ... + 770736.

It is an arithmetic number, because the mean of its divisors is an integer number (75455786).

Almost surely, 2^1201132140 is an apocalyptic number.

1201132140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1201132140 is an abundant number, since it is smaller than the sum of its proper divisors (2420745588).

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

1201132140 is a wasteful number, since it uses less digits than its factorization.

1201132140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1539938 (or 1539936 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 1201132140 is about 34657.3533323016. The cubic root of 1201132140 is about 1062.9926525500.

Adding to 1201132140 its reverse (412311021), we get a palindrome (1613443161).

The spelling of 1201132140 in words is "one billion, two hundred one million, one hundred thirty-two thousand, one hundred forty".