405405502131142 has 8 divisors (see below), whose sum is σ = 618415172742600. Its totient is φ = 199267111216944.

The previous prime is 405405502131107. The next prime is 405405502131143. The reversal of 405405502131142 is 241131205504504.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405405502131143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1717819924167 + ... + 1717819924402.

It is an arithmetic number, because the mean of its divisors is an integer number (77301896592825).

Almost surely, 2^{405405502131142} is an apocalyptic number.

405405502131142 is a deficient number, since it is larger than the sum of its proper divisors (213009670611458).

405405502131142 is a wasteful number, since it uses less digits than its factorization.

405405502131142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3435639848630.

The product of its (nonzero) digits is 96000, while the sum is 37.

Adding to 405405502131142 its reverse (241131205504504), we get a palindrome (646536707635646).

The spelling of 405405502131142 in words is "four hundred five trillion, four hundred five billion, five hundred two million, one hundred thirty-one thousand, one hundred forty-two".