142571241 has 12 divisors (see below), whose sum is σ = 206083332. Its totient is φ = 94979616.

The previous prime is 142571239. The next prime is 142571267. The reversal of 142571241 is 142175241.

It can be written as a sum of positive squares in 2 ways, for example, as 41990400 + 100580841 = 6480^2 + 10029^2 .

It is not a de Polignac number, because 142571241 - 2¹ = 142571239 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (142571281) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9895 + ... + 19571.

It is an arithmetic number, because the mean of its divisors is an integer number (17173611).

Almost surely, 2^142571241 is an apocalyptic number.

It is an amenable number.

142571241 is a deficient number, since it is larger than the sum of its proper divisors (63512091).

142571241 is a wasteful number, since it uses less digits than its factorization.

142571241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11320 (or 11317 counting only the distinct ones).

The product of its digits is 2240, while the sum is 27.

The square root of 142571241 is about 11940.3199705871. The cubic root of 142571241 is about 522.4089915742.

The spelling of 142571241 in words is "one hundred forty-two million, five hundred seventy-one thousand, two hundred forty-one".