144241531 has 4 divisors (see below), whose sum is σ = 164847472. Its totient is φ = 123635592.

The previous prime is 144241523. The next prime is 144241547. The reversal of 144241531 is 135142441.

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

It is a cyclic number.

It is not a de Polignac number, because 144241531 - 2³ = 144241523 is a prime.

It is a super-2 number, since 2×144241531² = 41611238530447922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 144241496 and 144241505.

It is not an unprimeable number, because it can be changed into a prime (144241511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10302960 + ... + 10302973.

It is an arithmetic number, because the mean of its divisors is an integer number (41211868).

Almost surely, 2^144241531 is an apocalyptic number.

144241531 is a deficient number, since it is larger than the sum of its proper divisors (20605941).

144241531 is an equidigital number, since it uses as much as digits as its factorization.

144241531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20605940.

The product of its digits is 1920, while the sum is 25.

The square root of 144241531 is about 12010.0595752061. The cubic root of 144241531 is about 524.4411662096.

Adding to 144241531 its reverse (135142441), we get a palindrome (279383972).

The spelling of 144241531 in words is "one hundred forty-four million, two hundred forty-one thousand, five hundred thirty-one".