1142505336 has 64 divisors (see below), whose sum is σ = 3276218880. Its totient is φ = 325238400.

The previous prime is 1142505319. The next prime is 1142505337. The reversal of 1142505336 is 6335052411.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142505337) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34261 + ... + 58811.

It is an arithmetic number, because the mean of its divisors is an integer number (51190920).

Almost surely, 2^1142505336 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 1142505336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1638109440).

1142505336 is an abundant number, since it is smaller than the sum of its proper divisors (2133713544).

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

1142505336 is a wasteful number, since it uses less digits than its factorization.

1142505336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24844 (or 24840 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 1142505336 is about 33800.9664950575. The cubic root of 1142505336 is about 1045.4086254027.

Adding to 1142505336 its reverse (6335052411), we get a palindrome (7477557747).

The spelling of 1142505336 in words is "one billion, one hundred forty-two million, five hundred five thousand, three hundred thirty-six".