1142534986 has 8 divisors (see below), whose sum is σ = 1713947040. Its totient is φ = 571219308.

The previous prime is 1142534957. The next prime is 1142534989. The reversal of 1142534986 is 6894352411.

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

It is not an unprimeable number, because it can be changed into a prime (1142534989) 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 3 ways as a sum of consecutive naturals, for example, 28555 + ... + 55681.

It is an arithmetic number, because the mean of its divisors is an integer number (214243380).

Almost surely, 2^1142534986 is an apocalyptic number.

1142534986 is a deficient number, since it is larger than the sum of its proper divisors (571412054).

1142534986 is a wasteful number, since it uses less digits than its factorization.

1142534986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48188.

The product of its digits is 207360, while the sum is 43.

The square root of 1142534986 is about 33801.4050891379. The cubic root of 1142534986 is about 1045.4176687149.

The spelling of 1142534986 in words is "one billion, one hundred forty-two million, five hundred thirty-four thousand, nine hundred eighty-six".