1242541546 has 8 divisors (see below), whose sum is σ = 1887405120. Its totient is φ = 613406508.

The previous prime is 1242541529. The next prime is 1242541561. The reversal of 1242541546 is 6451452421.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3931936 + ... + 3932251.

It is an arithmetic number, because the mean of its divisors is an integer number (235925640).

Almost surely, 2^1242541546 is an apocalyptic number.

1242541546 is a deficient number, since it is larger than the sum of its proper divisors (644863574).

1242541546 is an equidigital number, since it uses as much as digits as its factorization.

1242541546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7864268.

The product of its digits is 38400, while the sum is 34.

The square root of 1242541546 is about 35249.7027788888. The cubic root of 1242541546 is about 1075.0705692992.

Adding to 1242541546 its reverse (6451452421), we get a palindrome (7693993967).

The spelling of 1242541546 in words is "one billion, two hundred forty-two million, five hundred forty-one thousand, five hundred forty-six".