142502111 has 2 divisors, whose sum is σ = 142502112. Its totient is φ = 142502110.

The previous prime is 142502053. The next prime is 142502123. The reversal of 142502111 is 111205241.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 142502111 - 2¹⁰ = 142501087 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 142502111.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142502141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71251055 + 71251056.

It is an arithmetic number, because the mean of its divisors is an integer number (71251056).

Almost surely, 2^142502111 is an apocalyptic number.

142502111 is a deficient number, since it is larger than the sum of its proper divisors (1).

142502111 is an equidigital number, since it uses as much as digits as its factorization.

142502111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 142502111 is about 11937.4248060459. The cubic root of 142502111 is about 522.3245426304.

Adding to 142502111 its reverse (111205241), we get a palindrome (253707352).

It can be divided in two parts, 14250 and 2111, that added together give a palindrome (16361).

The spelling of 142502111 in words is "one hundred forty-two million, five hundred two thousand, one hundred eleven".