1142546487 has 4 divisors (see below), whose sum is σ = 1523395320. Its totient is φ = 761697656.

The previous prime is 1142546473. The next prime is 1142546491. The reversal of 1142546487 is 7846452411.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1142546487 - 2⁶ = 1142546423 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142546407) 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, 190424412 + ... + 190424417.

It is an arithmetic number, because the mean of its divisors is an integer number (380848830).

Almost surely, 2^1142546487 is an apocalyptic number.

1142546487 is a deficient number, since it is larger than the sum of its proper divisors (380848833).

1142546487 is an equidigital number, since it uses as much as digits as its factorization.

1142546487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380848832.

The product of its digits is 215040, while the sum is 42.

The square root of 1142546487 is about 33801.5752147736. The cubic root of 1142546487 is about 1045.4211765020.

Adding to 1142546487 its reverse (7846452411), we get a palindrome (8988998898).

The spelling of 1142546487 in words is "one billion, one hundred forty-two million, five hundred forty-six thousand, four hundred eighty-seven".