144942539 has 8 divisors (see below), whose sum is σ = 169029600. Its totient is φ = 124236168.

The previous prime is 144942533. The next prime is 144942547. The reversal of 144942539 is 935249441.

144942539 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 144942539 - 2¹⁶ = 144877003 is a prime.

It is a super-2 number, since 2×144942539² = 42016679223533042, 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 = 144942496 and 144942505.

It is not an unprimeable number, because it can be changed into a prime (144942533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 210944 + ... + 211629.

It is an arithmetic number, because the mean of its divisors is an integer number (21128700).

Almost surely, 2^144942539 is an apocalyptic number.

144942539 is a deficient number, since it is larger than the sum of its proper divisors (24087061).

144942539 is an frugal number, since it uses more digits than its factorization.

144942539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422594 (or 422580 counting only the distinct ones).

The product of its digits is 155520, while the sum is 41.

The square root of 144942539 is about 12039.2084042100. The cubic root of 144942539 is about 525.2893812039.

The spelling of 144942539 in words is "one hundred forty-four million, nine hundred forty-two thousand, five hundred thirty-nine".