142466189 has 2 divisors, whose sum is σ = 142466190. Its totient is φ = 142466188.

The previous prime is 142466153. The next prime is 142466251. The reversal of 142466189 is 981664241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 113252164 + 29214025 = 10642^2 + 5405^2 .

It is a cyclic number.

It is not a de Polignac number, because 142466189 - 2¹² = 142462093 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 (142466119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71233094 + 71233095.

It is an arithmetic number, because the mean of its divisors is an integer number (71233095).

Almost surely, 2^142466189 is an apocalyptic number.

It is an amenable number.

142466189 is a deficient number, since it is larger than the sum of its proper divisors (1).

142466189 is an equidigital number, since it uses as much as digits as its factorization.

142466189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 82944, while the sum is 41.

The square root of 142466189 is about 11935.9201153493. The cubic root of 142466189 is about 522.2806496688.

The spelling of 142466189 in words is "one hundred forty-two million, four hundred sixty-six thousand, one hundred eighty-nine".