142801061 has 8 divisors (see below), whose sum is σ = 156307704. Its totient is φ = 129654720.

The previous prime is 142801039. The next prime is 142801081. The reversal of 142801061 is 160108241.

It can be written as a sum of positive squares in 4 ways, for example, as 6728836 + 136072225 = 2594^2 + 11665^2 .

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

It is not a de Polignac number, because 142801061 - 2¹⁰ = 142800037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142801081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89246 + ... + 90831.

It is an arithmetic number, because the mean of its divisors is an integer number (19538463).

Almost surely, 2^142801061 is an apocalyptic number.

It is an amenable number.

142801061 is a deficient number, since it is larger than the sum of its proper divisors (13506643).

142801061 is a wasteful number, since it uses less digits than its factorization.

142801061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180151.

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 142801061 is about 11949.9397906433. The cubic root of 142801061 is about 522.6895427345.

The spelling of 142801061 in words is "one hundred forty-two million, eight hundred one thousand, sixty-one".