1142543330 has 8 divisors (see below), whose sum is σ = 2056578012. Its totient is φ = 457017328.

The previous prime is 1142543329. The next prime is 1142543333. The reversal of 1142543330 is 333452411.

It can be written as a sum of positive squares in 2 ways, for example, as 1131447769 + 11095561 = 33637^2 + 3331^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 1142543330.

It is not an unprimeable number, because it can be changed into a prime (1142543333) 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, 57127157 + ... + 57127176.

Almost surely, 2^1142543330 is an apocalyptic number.

1142543330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1142543330 is a deficient number, since it is larger than the sum of its proper divisors (914034682).

1142543330 is a wasteful number, since it uses less digits than its factorization.

1142543330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114254340.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 1142543330 is about 33801.5285157343. The cubic root of 1142543330 is about 1045.4202136243.

Adding to 1142543330 its reverse (333452411), we get a palindrome (1475995741).

The spelling of 1142543330 in words is "one billion, one hundred forty-two million, five hundred forty-three thousand, three hundred thirty".