142446065 has 8 divisors (see below), whose sum is σ = 171014568. Its totient is φ = 113904000.

The previous prime is 142446019. The next prime is 142446071. The reversal of 142446065 is 560644241.

It can be written as a sum of positive squares in 4 ways, for example, as 39037504 + 103408561 = 6248^2 + 10169^2 .

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

It is not a de Polignac number, because 142446065 - 2²² = 138251761 is a prime.

It is a Duffinian number.

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, 8315 + ... + 18815.

It is an arithmetic number, because the mean of its divisors is an integer number (21376821).

Almost surely, 2^142446065 is an apocalyptic number.

It is an amenable number.

142446065 is a deficient number, since it is larger than the sum of its proper divisors (28568503).

142446065 is a wasteful number, since it uses less digits than its factorization.

142446065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13219.

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 142446065 is about 11935.0770839572. The cubic root of 142446065 is about 522.2560570017.

The spelling of 142446065 in words is "one hundred forty-two million, four hundred forty-six thousand, sixty-five".