142860211 has 4 divisors (see below), whose sum is σ = 153849472. Its totient is φ = 131870952.

The previous prime is 142860191. The next prime is 142860217. The reversal of 142860211 is 112068241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 112068241 = 109 ⋅1028149.

It is a cyclic number.

It is not a de Polignac number, because 142860211 - 2¹³ = 142852019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142860217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5494611 + ... + 5494636.

It is an arithmetic number, because the mean of its divisors is an integer number (38462368).

Almost surely, 2^142860211 is an apocalyptic number.

142860211 is a deficient number, since it is larger than the sum of its proper divisors (10989261).

142860211 is a wasteful number, since it uses less digits than its factorization.

142860211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10989260.

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 142860211 is about 11952.4144422790. The cubic root of 142860211 is about 522.7617009721.

The spelling of 142860211 in words is "one hundred forty-two million, eight hundred sixty thousand, two hundred eleven".