144426531 has 8 divisors (see below), whose sum is σ = 192634560. Its totient is φ = 96251432.

The previous prime is 144426511. The next prime is 144426539. The reversal of 144426531 is 135624441.

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 144426531 - 2¹⁵ = 144393763 is a prime.

It is a super-2 number, since 2×144426531² = 41718045713387922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (144426539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5080 + ... + 17738.

It is an arithmetic number, because the mean of its divisors is an integer number (24079320).

Almost surely, 2^144426531 is an apocalyptic number.

144426531 is a deficient number, since it is larger than the sum of its proper divisors (48208029).

144426531 is a wasteful number, since it uses less digits than its factorization.

144426531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16465.

The product of its digits is 11520, while the sum is 30.

The square root of 144426531 is about 12017.7589841035. The cubic root of 144426531 is about 524.6652814270.

The spelling of 144426531 in words is "one hundred forty-four million, four hundred twenty-six thousand, five hundred thirty-one".