1142114520 has 128 divisors (see below), whose sum is σ = 3569495040. Its totient is φ = 292078080.

The previous prime is 1142114497. The next prime is 1142114521. The reversal of 1142114520 is 254112411.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142114521) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 313429 + ... + 317051.

It is an arithmetic number, because the mean of its divisors is an integer number (27886680).

Almost surely, 2^1142114520 is an apocalyptic number.

1142114520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1142114520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1784747520).

1142114520 is an abundant number, since it is smaller than the sum of its proper divisors (2427380520).

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

1142114520 is a wasteful number, since it uses less digits than its factorization.

1142114520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3745 (or 3741 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 21.

The square root of 1142114520 is about 33795.1848641193. The cubic root of 1142114520 is about 1045.2894110764.

Adding to 1142114520 its reverse (254112411), we get a palindrome (1396226931).

The spelling of 1142114520 in words is "one billion, one hundred forty-two million, one hundred fourteen thousand, five hundred twenty".