142564023505 has 32 divisors (see below), whose sum is σ = 176168982528. Its totient is φ = 110687040000.

The previous prime is 142564023487. The next prime is 142564023533. The reversal of 142564023505 is 505320465241.

It is not a de Polignac number, because 142564023505 - 2⁵ = 142564023473 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42643864 + ... + 42647206.

It is an arithmetic number, because the mean of its divisors is an integer number (5505280704).

Almost surely, 2^142564023505 is an apocalyptic number.

It is an amenable number.

142564023505 is a deficient number, since it is larger than the sum of its proper divisors (33604959023).

142564023505 is a wasteful number, since it uses less digits than its factorization.

142564023505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4417.

The product of its (nonzero) digits is 144000, while the sum is 37.

Adding to 142564023505 its reverse (505320465241), we get a palindrome (647884488746).

The spelling of 142564023505 in words is "one hundred forty-two billion, five hundred sixty-four million, twenty-three thousand, five hundred five".