12345001542 has 24 divisors (see below), whose sum is σ = 26782315560. Its totient is φ = 4109644800.

The previous prime is 12345001541. The next prime is 12345001549. The reversal of 12345001542 is 24510054321.

12345001542 is a `hidden beast` number, since 1 + 2 + 3 + 4 + 500 + 154 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12345001541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 432084 + ... + 459767.

It is an arithmetic number, because the mean of its divisors is an integer number (1115929815).

Almost surely, 2^12345001542 is an apocalyptic number.

12345001542 is an abundant number, since it is smaller than the sum of its proper divisors (14437314018).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12345001542 is a wasteful number, since it uses less digits than its factorization.

12345001542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 892628 (or 892625 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

Adding to 12345001542 its reverse (24510054321), we get a palindrome (36855055863).

The spelling of 12345001542 in words is "twelve billion, three hundred forty-five million, one thousand, five hundred forty-two".