144438155 has 8 divisors (see below), whose sum is σ = 173502000. Its totient is φ = 115433056.

The previous prime is 144438127. The next prime is 144438157. The reversal of 144438155 is 551834441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 144438155 - 2²⁰ = 143389579 is a prime.

It is not an unprimeable number, because it can be changed into a prime (144438157) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9080 + ... + 19269.

It is an arithmetic number, because the mean of its divisors is an integer number (21687750).

Almost surely, 2^144438155 is an apocalyptic number.

144438155 is a deficient number, since it is larger than the sum of its proper divisors (29063845).

144438155 is a wasteful number, since it uses less digits than its factorization.

144438155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29373.

The product of its digits is 38400, while the sum is 35.

The square root of 144438155 is about 12018.2425919932. The cubic root of 144438155 is about 524.6793567394.

The spelling of 144438155 in words is "one hundred forty-four million, four hundred thirty-eight thousand, one hundred fifty-five".