144001531 has 2 divisors, whose sum is σ = 144001532. Its totient is φ = 144001530.

The previous prime is 144001483. The next prime is 144001591. The reversal of 144001531 is 135100441.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 144001531 - 2¹⁵ = 143968763 is a prime.

It is a super-2 number, since 2×144001531² = 41472881860687922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 144001499 and 144001508.

It is not a weakly prime, because it can be changed into another prime (144001591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72000765 + 72000766.

It is an arithmetic number, because the mean of its divisors is an integer number (72000766).

Almost surely, 2^144001531 is an apocalyptic number.

144001531 is a deficient number, since it is larger than the sum of its proper divisors (1).

144001531 is an equidigital number, since it uses as much as digits as its factorization.

144001531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 144001531 is about 12000.0637914971. The cubic root of 144001531 is about 524.1501364070.

Adding to 144001531 its reverse (135100441), we get a palindrome (279101972).

It can be divided in two parts, 14400 and 1531, that added together give a triangular number (15931 = T₁₇₈).

The spelling of 144001531 in words is "one hundred forty-four million, one thousand, five hundred thirty-one".