1142140956 has 48 divisors (see below), whose sum is σ = 2917289088. Its totient is φ = 344910400.

The previous prime is 1142140943. The next prime is 1142140963. The reversal of 1142140956 is 6590412411.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 23911 + ... + 53441.

It is an arithmetic number, because the mean of its divisors is an integer number (60776856).

Almost surely, 2^1142140956 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1142140956, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1458644544).

1142140956 is an abundant number, since it is smaller than the sum of its proper divisors (1775148132).

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

1142140956 is a wasteful number, since it uses less digits than its factorization.

1142140956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29842 (or 29840 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 33.

The square root of 1142140956 is about 33795.5759826638. The cubic root of 1142140956 is about 1045.2974759587.

The spelling of 1142140956 in words is "one billion, one hundred forty-two million, one hundred forty thousand, nine hundred fifty-six".