1142169616 has 135 divisors (see below), whose sum is σ = 2773643997. Its totient is φ = 454218240.

The previous prime is 1142169593. The next prime is 1142169617. The reversal of 1142169616 is 6169612411.

The square root of 1142169616 is 33796.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 889232400 + 252937216 = 29820^2 + 15904^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1142169617) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 16086861 + ... + 16086931.

Almost surely, 2^1142169616 is an apocalyptic number.

1142169616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

1142169616 is the 33796-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1142169616

1142169616 is an abundant number, since it is smaller than the sum of its proper divisors (1631474381).

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

1142169616 is an equidigital number, since it uses as much as digits as its factorization.

1142169616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198 (or 97 counting only the distinct ones).

The product of its digits is 15552, while the sum is 37.

The cubic root of 1142169616 is about 1045.3062191805.

The spelling of 1142169616 in words is "one billion, one hundred forty-two million, one hundred sixty-nine thousand, six hundred sixteen".