1142831616 has 80 divisors (see below), whose sum is σ = 3142917888. Its totient is φ = 368640000.

The previous prime is 1142831611. The next prime is 1142831621. The reversal of 1142831616 is 6161382411.

It is an interprime number because it is at equal distance from previous prime (1142831611) and next prime (1142831621).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142831611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35616 + ... + 59616.

Almost surely, 2^1142831616 is an apocalyptic number.

1142831616 is a gapful number since it is divisible by the number (16) 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 1142831616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1571458944).

1142831616 is an abundant number, since it is smaller than the sum of its proper divisors (2000086272).

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

1142831616 is an equidigital number, since it uses as much as digits as its factorization.

1142831616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24053 (or 24037 counting only the distinct ones).

The product of its digits is 6912, while the sum is 33.

The square root of 1142831616 is about 33805.7926397237. The cubic root of 1142831616 is about 1045.5081328770.

The spelling of 1142831616 in words is "one billion, one hundred forty-two million, eight hundred thirty-one thousand, six hundred sixteen".