1144175142 has 32 divisors (see below), whose sum is σ = 2507316480. Its totient is φ = 345201120.

The previous prime is 1144175119. The next prime is 1144175143. The reversal of 1144175142 is 2415714411.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1144175143) 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 15 ways as a sum of consecutive naturals, for example, 22738 + ... + 52965.

It is an arithmetic number, because the mean of its divisors is an integer number (78353640).

Almost surely, 2^1144175142 is an apocalyptic number.

1144175142 is an abundant number, since it is smaller than the sum of its proper divisors (1363141338).

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

1144175142 is a wasteful number, since it uses less digits than its factorization.

1144175142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75948.

The product of its digits is 4480, while the sum is 30.

The square root of 1144175142 is about 33825.6580423796. The cubic root of 1144175142 is about 1045.9176762286.

Adding to 1144175142 its reverse (2415714411), we get a palindrome (3559889553).

The spelling of 1144175142 in words is "one billion, one hundred forty-four million, one hundred seventy-five thousand, one hundred forty-two".