142541423505 has 24 divisors (see below), whose sum is σ = 266077324968. Its totient is φ = 70174238976.

The previous prime is 142541423483. The next prime is 142541423509. The reversal of 142541423505 is 505324145241.

142541423505 is a `hidden beast` number, since 1 + 4 + 2 + 5 + 4 + 142 + 3 + 505 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 63107136 + 142478316369 = 7944^2 + 377463^2 .

It is not a de Polignac number, because 142541423505 - 2⁶ = 142541423441 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 142541423505.

It is not an unprimeable number, because it can be changed into a prime (142541423509) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 121829692 + ... + 121830861.

It is an arithmetic number, because the mean of its divisors is an integer number (11086555207).

Almost surely, 2^142541423505 is an apocalyptic number.

142541423505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

142541423505 is a deficient number, since it is larger than the sum of its proper divisors (123535901463).

142541423505 is a wasteful number, since it uses less digits than its factorization.

142541423505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243660577 (or 243660574 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 36.

Adding to 142541423505 its reverse (505324145241), we get a palindrome (647865568746).

The spelling of 142541423505 in words is "one hundred forty-two billion, five hundred forty-one million, four hundred twenty-three thousand, five hundred five".