1542243512 has 8 divisors (see below), whose sum is σ = 2891706600. Its totient is φ = 771121752.

The previous prime is 1542243511. The next prime is 1542243517. The reversal of 1542243512 is 2153422451.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1542243511) by changing a digit.

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 as a sum of consecutive naturals, namely, 96390212 + ... + 96390227.

It is an arithmetic number, because the mean of its divisors is an integer number (361463325).

Almost surely, 2^1542243512 is an apocalyptic number.

It is an amenable number.

1542243512 is a deficient number, since it is larger than the sum of its proper divisors (1349463088).

1542243512 is a wasteful number, since it uses less digits than its factorization.

1542243512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192780445 (or 192780441 counting only the distinct ones).

The product of its digits is 9600, while the sum is 29.

The square root of 1542243512 is about 39271.4083271787. The cubic root of 1542243512 is about 1155.3608592400.

Adding to 1542243512 its reverse (2153422451), we get a palindrome (3695665963).

The spelling of 1542243512 in words is "one billion, five hundred forty-two million, two hundred forty-three thousand, five hundred twelve".