2145204513142 has 8 divisors (see below), whose sum is σ = 3231982130616. Its totient is φ = 1067877136272.

The previous prime is 2145204513121. The next prime is 2145204513191. The reversal of 2145204513142 is 2413154025412.

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

It is a junction number, because it is equal to n+sod(n) for n = 2145204513098 and 2145204513107.

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 3 ways as a sum of consecutive naturals, for example, 2362559583 + ... + 2362560490.

It is an arithmetic number, because the mean of its divisors is an integer number (403997766327).

Almost surely, 2^{2145204513142} is an apocalyptic number.

2145204513142 is a deficient number, since it is larger than the sum of its proper divisors (1086777617474).

2145204513142 is a wasteful number, since it uses less digits than its factorization.

2145204513142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4725120302.

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

Adding to 2145204513142 its reverse (2413154025412), we get a palindrome (4558358538554).

The spelling of 2145204513142 in words is "two trillion, one hundred forty-five billion, two hundred four million, five hundred thirteen thousand, one hundred forty-two".