1142430172 has 12 divisors (see below), whose sum is σ = 2153041576. Its totient is φ = 527275440.

The previous prime is 1142430169. The next prime is 1142430173. The reversal of 1142430172 is 2710342411.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142430173) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10984854 + ... + 10984957.

Almost surely, 2^1142430172 is an apocalyptic number.

It is an amenable number.

1142430172 is a deficient number, since it is larger than the sum of its proper divisors (1010611404).

1142430172 is a wasteful number, since it uses less digits than its factorization.

1142430172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21969828 (or 21969826 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 1142430172 is about 33799.8546150719. The cubic root of 1142430172 is about 1045.3856995237.

Adding to 1142430172 its reverse (2710342411), we get a palindrome (3852772583).

The spelling of 1142430172 in words is "one billion, one hundred forty-two million, four hundred thirty thousand, one hundred seventy-two".