142802111 has 2 divisors, whose sum is σ = 142802112. Its totient is φ = 142802110.

The previous prime is 142802071. The next prime is 142802131. The reversal of 142802111 is 111208241.

It is an a-pointer prime, because the next prime (142802131) can be obtained adding 142802111 to its sum of digits (20).

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142802111 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142802131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71401055 + 71401056.

It is an arithmetic number, because the mean of its divisors is an integer number (71401056).

Almost surely, 2^142802111 is an apocalyptic number.

142802111 is a deficient number, since it is larger than the sum of its proper divisors (1).

142802111 is an equidigital number, since it uses as much as digits as its factorization.

142802111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128, while the sum is 20.

The square root of 142802111 is about 11949.9837238383. The cubic root of 142802111 is about 522.6908238237.

The spelling of 142802111 in words is "one hundred forty-two million, eight hundred two thousand, one hundred eleven".