144258938 has 4 divisors (see below), whose sum is σ = 216388410. Its totient is φ = 72129468.

The previous prime is 144258931. The next prime is 144258941. The reversal of 144258938 is 839852441.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 124925329 + 19333609 = 11177^2 + 4397^2 .

It is not an unprimeable number, because it can be changed into a prime (144258931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36064733 + ... + 36064736.

Almost surely, 2^144258938 is an apocalyptic number.

144258938 is a deficient number, since it is larger than the sum of its proper divisors (72129472).

144258938 is an equidigital number, since it uses as much as digits as its factorization.

144258938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72129471.

The product of its digits is 276480, while the sum is 44.

The square root of 144258938 is about 12010.7842375092. The cubic root of 144258938 is about 524.4622617986.

The spelling of 144258938 in words is "one hundred forty-four million, two hundred fifty-eight thousand, nine hundred thirty-eight".