1245504042442 has 16 divisors (see below), whose sum is σ = 2051594864064. Its totient is φ = 562388940000.

The previous prime is 1245504042437. The next prime is 1245504042451. The reversal of 1245504042442 is 2442404055421.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 187459659 + ... + 187466302.

It is an arithmetic number, because the mean of its divisors is an integer number (128224679004).

Almost surely, 2^{1245504042442} is an apocalyptic number.

1245504042442 is a deficient number, since it is larger than the sum of its proper divisors (806090821622).

1245504042442 is a wasteful number, since it uses less digits than its factorization.

1245504042442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374926125.

The product of its (nonzero) digits is 204800, while the sum is 37.

Adding to 1245504042442 its reverse (2442404055421), we get a palindrome (3687908097863).

The spelling of 1245504042442 in words is "one trillion, two hundred forty-five billion, five hundred four million, forty-two thousand, four hundred forty-two".