1142331090 has 48 divisors (see below), whose sum is σ = 2832957504. Its totient is φ = 294787680.

The previous prime is 1142331067. The next prime is 1142331097. The reversal of 1142331090 is 901332411.

It is a super-3 number, since 3×1142331090³ (a number of 28 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1142331090.

It is not an unprimeable number, because it can be changed into a prime (1142331097) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 9019 + ... + 48641.

It is an arithmetic number, because the mean of its divisors is an integer number (59019948).

Almost surely, 2^1142331090 is an apocalyptic number.

1142331090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1142331090, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1416478752).

1142331090 is an abundant number, since it is smaller than the sum of its proper divisors (1690626414).

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

1142331090 is a wasteful number, since it uses less digits than its factorization.

1142331090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39695 (or 39664 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 24.

The square root of 1142331090 is about 33798.3888669268. The cubic root of 1142331090 is about 1045.3554768449.

The spelling of 1142331090 in words is "one billion, one hundred forty-two million, three hundred thirty-one thousand, ninety".