1142573686 has 4 divisors (see below), whose sum is σ = 1713860532. Its totient is φ = 571286842.

The previous prime is 1142573681. The next prime is 1142573687. The reversal of 1142573686 is 6863752411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6863752411 = 59497 ⋅115363.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142573681) 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 as a sum of consecutive naturals, namely, 285643420 + ... + 285643423.

It is an arithmetic number, because the mean of its divisors is an integer number (428465133).

Almost surely, 2^1142573686 is an apocalyptic number.

1142573686 is a deficient number, since it is larger than the sum of its proper divisors (571286846).

1142573686 is an equidigital number, since it uses as much as digits as its factorization.

1142573686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571286845.

The product of its digits is 241920, while the sum is 43.

The square root of 1142573686 is about 33801.9775456999. The cubic root of 1142573686 is about 1045.4294720609.

The spelling of 1142573686 in words is "one billion, one hundred forty-two million, five hundred seventy-three thousand, six hundred eighty-six".