142445152505 has 16 divisors (see below), whose sum is σ = 172914430224. Its totient is φ = 112643481600.

The previous prime is 142445152481. The next prime is 142445152537. The reversal of 142445152505 is 505251544241.

It can be written as a sum of positive squares in 8 ways, for example, as 51900129856 + 90545022649 = 227816^2 + 300907^2 .

It is not a de Polignac number, because 142445152505 - 2¹⁸ = 142444890361 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 318596 + ... + 621605.

It is an arithmetic number, because the mean of its divisors is an integer number (10807151889).

Almost surely, 2^142445152505 is an apocalyptic number.

It is an amenable number.

142445152505 is a deficient number, since it is larger than the sum of its proper divisors (30469277719).

142445152505 is a wasteful number, since it uses less digits than its factorization.

142445152505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 940556.

The product of its (nonzero) digits is 160000, while the sum is 38.

Adding to 142445152505 its reverse (505251544241), we get a palindrome (647696696746).

The spelling of 142445152505 in words is "one hundred forty-two billion, four hundred forty-five million, one hundred fifty-two thousand, five hundred five".