142908211 has 2 divisors, whose sum is σ = 142908212. Its totient is φ = 142908210.

The previous prime is 142908209. The next prime is 142908217. The reversal of 142908211 is 112809241.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 142908211 - 2¹ = 142908209 is a prime.

Together with 142908209, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 142908211.

It is not a weakly prime, because it can be changed into another prime (142908217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71454105 + 71454106.

It is an arithmetic number, because the mean of its divisors is an integer number (71454106).

Almost surely, 2^142908211 is an apocalyptic number.

142908211 is a deficient number, since it is larger than the sum of its proper divisors (1).

142908211 is an equidigital number, since it uses as much as digits as its factorization.

142908211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 142908211 is about 11954.4222361434. The cubic root of 142908211 is about 522.8202424692.

The spelling of 142908211 in words is "one hundred forty-two million, nine hundred eight thousand, two hundred eleven".