42245065145 has 8 divisors (see below), whose sum is σ = 51159162120. Its totient is φ = 33485996160.

The previous prime is 42245065133. The next prime is 42245065183. The reversal of 42245065145 is 54156054224.

It can be written as a sum of positive squares in 4 ways, for example, as 42758521 + 42202306624 = 6539^2 + 205432^2 .

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

It is not a de Polignac number, because 42245065145 - 2²⁰ = 42244016569 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42245065099 and 42245065108.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38756396 + ... + 38757485.

It is an arithmetic number, because the mean of its divisors is an integer number (6394895265).

Almost surely, 2^42245065145 is an apocalyptic number.

It is an amenable number.

42245065145 is a deficient number, since it is larger than the sum of its proper divisors (8914096975).

42245065145 is a wasteful number, since it uses less digits than its factorization.

42245065145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77513995.

The product of its (nonzero) digits is 192000, while the sum is 38.

The spelling of 42245065145 in words is "forty-two billion, two hundred forty-five million, sixty-five thousand, one hundred forty-five".