1142162168 has 48 divisors (see below), whose sum is σ = 2514144600. Its totient is φ = 484989120.

The previous prime is 1142162141. The next prime is 1142162239. The reversal of 1142162168 is 8612612411.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29363 + ... + 56093.

Almost surely, 2^1142162168 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 1142162168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1257072300).

1142162168 is an abundant number, since it is smaller than the sum of its proper divisors (1371982432).

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

1142162168 is a wasteful number, since it uses less digits than its factorization.

1142162168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26860 (or 26849 counting only the distinct ones).

The product of its digits is 4608, while the sum is 32.

The square root of 1142162168 is about 33795.8898092653. The cubic root of 1142162168 is about 1045.3039470551.

Adding to 1142162168 its reverse (8612612411), we get a palindrome (9754774579).

The spelling of 1142162168 in words is "one billion, one hundred forty-two million, one hundred sixty-two thousand, one hundred sixty-eight".