1215445003142 has 16 divisors (see below), whose sum is σ = 1848858653664. Its totient is φ = 599208720000.

The previous prime is 1215445003117. The next prime is 1215445003151. The reversal of 1215445003142 is 2413005445121.

It is a junction number, because it is equal to n+sod(n) for n = 1215445003099 and 1215445003108.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12434834 + ... + 12532197.

It is an arithmetic number, because the mean of its divisors is an integer number (115553665854).

Almost surely, 2^{1215445003142} is an apocalyptic number.

1215445003142 is a deficient number, since it is larger than the sum of its proper divisors (633413650522).

1215445003142 is a wasteful number, since it uses less digits than its factorization.

1215445003142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24967375.

The product of its (nonzero) digits is 19200, while the sum is 32.

The spelling of 1215445003142 in words is "one trillion, two hundred fifteen billion, four hundred forty-five million, three thousand, one hundred forty-two".