144713531 has 4 divisors (see below), whose sum is σ = 145151064. Its totient is φ = 144276000.

The previous prime is 144713467. The next prime is 144713551. The reversal of 144713531 is 135317441.

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 144713531 - 2⁶ = 144713467 is a prime.

It is a super-2 number, since 2×144713531² = 41884012108975922, 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 = 144713494 and 144713503.

It is not an unprimeable number, because it can be changed into a prime (144713551) 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, 218270 + ... + 218931.

It is an arithmetic number, because the mean of its divisors is an integer number (36287766).

Almost surely, 2^144713531 is an apocalyptic number.

144713531 is a deficient number, since it is larger than the sum of its proper divisors (437533).

144713531 is an equidigital number, since it uses as much as digits as its factorization.

144713531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437532.

The product of its digits is 5040, while the sum is 29.

The square root of 144713531 is about 12029.6937201244. The cubic root of 144713531 is about 525.0125844300.

The spelling of 144713531 in words is "one hundred forty-four million, seven hundred thirteen thousand, five hundred thirty-one".