142449227 has 2 divisors, whose sum is σ = 142449228. Its totient is φ = 142449226.

The previous prime is 142449173. The next prime is 142449271. The reversal of 142449227 is 722944241.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 142449227 - 2¹⁶ = 142383691 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (142449287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71224613 + 71224614.

It is an arithmetic number, because the mean of its divisors is an integer number (71224614).

Almost surely, 2^142449227 is an apocalyptic number.

142449227 is a deficient number, since it is larger than the sum of its proper divisors (1).

142449227 is an equidigital number, since it uses as much as digits as its factorization.

142449227 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32256, while the sum is 35.

The square root of 142449227 is about 11935.2095498990. The cubic root of 142449227 is about 522.2599212980.

The spelling of 142449227 in words is "one hundred forty-two million, four hundred forty-nine thousand, two hundred twenty-seven".