144442147 has 2 divisors, whose sum is σ = 144442148. Its totient is φ = 144442146.

The previous prime is 144442121. The next prime is 144442157. The reversal of 144442147 is 741244441.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 144442147 - 2¹⁹ = 143917859 is a prime.

It is equal to p_8149063 and since 144442147 and 8149063 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (144442157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72221073 + 72221074.

It is an arithmetic number, because the mean of its divisors is an integer number (72221074).

Almost surely, 2^144442147 is an apocalyptic number.

144442147 is a deficient number, since it is larger than the sum of its proper divisors (1).

144442147 is an equidigital number, since it uses as much as digits as its factorization.

144442147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14336, while the sum is 31.

The square root of 144442147 is about 12018.4086717003. The cubic root of 144442147 is about 524.6841904130.

Adding to 144442147 its reverse (741244441), we get a palindrome (885686588).

The spelling of 144442147 in words is "one hundred forty-four million, four hundred forty-two thousand, one hundred forty-seven".