144131521 has 8 divisors (see below), whose sum is σ = 145756800. Its totient is φ = 142515648.

The previous prime is 144131503. The next prime is 144131531. The reversal of 144131521 is 125131441.

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 144131521 - 2⁵ = 144131489 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 144131492 and 144131501.

It is not an unprimeable number, because it can be changed into a prime (144131531) 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, 31065 + ... + 35401.

It is an arithmetic number, because the mean of its divisors is an integer number (18219600).

Almost surely, 2^144131521 is an apocalyptic number.

It is an amenable number.

144131521 is a deficient number, since it is larger than the sum of its proper divisors (1625279).

144131521 is a wasteful number, since it uses less digits than its factorization.

144131521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4703.

The product of its digits is 480, while the sum is 22.

The square root of 144131521 is about 12005.4787909521. The cubic root of 144131521 is about 524.3078055291.

Adding to 144131521 its reverse (125131441), we get a palindrome (269262962).

The spelling of 144131521 in words is "one hundred forty-four million, one hundred thirty-one thousand, five hundred twenty-one".