144257093 has 2 divisors, whose sum is σ = 144257094. Its totient is φ = 144257092.

The previous prime is 144257059. The next prime is 144257111. The reversal of 144257093 is 390752441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 91738084 + 52519009 = 9578^2 + 7247^2 .

It is an emirp because it is prime and its reverse (390752441) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 144257093 - 2¹⁴ = 144240709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144257023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72128546 + 72128547.

It is an arithmetic number, because the mean of its divisors is an integer number (72128547).

Almost surely, 2^144257093 is an apocalyptic number.

It is an amenable number.

144257093 is a deficient number, since it is larger than the sum of its proper divisors (1).

144257093 is an equidigital number, since it uses as much as digits as its factorization.

144257093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 144257093 is about 12010.7074312881. The cubic root of 144257093 is about 524.4600259187.

The spelling of 144257093 in words is "one hundred forty-four million, two hundred fifty-seven thousand, ninety-three".