144742547 has 2 divisors, whose sum is σ = 144742548. Its totient is φ = 144742546.

The previous prime is 144742541. The next prime is 144742561. The reversal of 144742547 is 745247441.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 144742547 - 2⁸ = 144742291 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 144742547.

It is not a weakly prime, because it can be changed into another prime (144742541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72371273 + 72371274.

It is an arithmetic number, because the mean of its divisors is an integer number (72371274).

Almost surely, 2^144742547 is an apocalyptic number.

144742547 is a deficient number, since it is larger than the sum of its proper divisors (1).

144742547 is an equidigital number, since it uses as much as digits as its factorization.

144742547 is an evil number, because the sum of its binary digits is even.

The product of its digits is 125440, while the sum is 38.

The square root of 144742547 is about 12030.8996754191. The cubic root of 144742547 is about 525.0476715593.

Adding to 144742547 its reverse (745247441), we get a palindrome (889989988).

The spelling of 144742547 in words is "one hundred forty-four million, seven hundred forty-two thousand, five hundred forty-seven".