144472539 has 16 divisors (see below), whose sum is σ = 195761664. Its totient is φ = 94759200.

The previous prime is 144472529. The next prime is 144472567. The reversal of 144472539 is 935274441.

It is not a de Polignac number, because 144472539 - 2⁷ = 144472411 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 144472497 and 144472506.

It is not an unprimeable number, because it can be changed into a prime (144472529) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66409 + ... + 68549.

It is an arithmetic number, because the mean of its divisors is an integer number (12235104).

Almost surely, 2^144472539 is an apocalyptic number.

144472539 is a deficient number, since it is larger than the sum of its proper divisors (51289125).

144472539 is a wasteful number, since it uses less digits than its factorization.

144472539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2498.

The product of its digits is 120960, while the sum is 39.

The square root of 144472539 is about 12019.6729988798. The cubic root of 144472539 is about 524.7209873452.

The spelling of 144472539 in words is "one hundred forty-four million, four hundred seventy-two thousand, five hundred thirty-nine".