144371438 has 4 divisors (see below), whose sum is σ = 216557160. Its totient is φ = 72185718.

The previous prime is 144371413. The next prime is 144371453. The reversal of 144371438 is 834173441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 834173441 = 10979 ⋅75979.

It is a super-2 number, since 2×144371438² = 41686224220375688, which contains 22 as substring.

It is a Curzon number.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 144371398 and 144371407.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36092858 + ... + 36092861.

It is an arithmetic number, because the mean of its divisors is an integer number (54139290).

Almost surely, 2^144371438 is an apocalyptic number.

144371438 is a deficient number, since it is larger than the sum of its proper divisors (72185722).

144371438 is an equidigital number, since it uses as much as digits as its factorization.

144371438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72185721.

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

The square root of 144371438 is about 12015.4666159912. The cubic root of 144371438 is about 524.5985599358.

The spelling of 144371438 in words is "one hundred forty-four million, three hundred seventy-one thousand, four hundred thirty-eight".