42352005145 has 4 divisors (see below), whose sum is σ = 50822406180. Its totient is φ = 33881604112.

The previous prime is 42352005139. The next prime is 42352005169. The reversal of 42352005145 is 54150025324.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8872886416 + 33479118729 = 94196^2 + 182973^2 .

It is a cyclic number.

It is not a de Polignac number, because 42352005145 - 2²³ = 42343616537 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4235200510 + ... + 4235200519.

It is an arithmetic number, because the mean of its divisors is an integer number (12705601545).

Almost surely, 2^42352005145 is an apocalyptic number.

It is an amenable number.

42352005145 is a deficient number, since it is larger than the sum of its proper divisors (8470401035).

42352005145 is an equidigital number, since it uses as much as digits as its factorization.

42352005145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8470401034.

The product of its (nonzero) digits is 24000, while the sum is 31.

The spelling of 42352005145 in words is "forty-two billion, three hundred fifty-two million, five thousand, one hundred forty-five".