153938439 has 12 divisors (see below), whose sum is σ = 224435016. Its totient is φ = 101665872.

The previous prime is 153938419. The next prime is 153938483. The reversal of 153938439 is 934839351.

153938439 is a `hidden beast` number, since 1 + 539 + 3 + 84 + 39 = 666.

It is not a de Polignac number, because 153938439 - 2¹⁵ = 153905671 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 153938394 and 153938403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (153938419) 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 11 ways as a sum of consecutive naturals, for example, 78964 + ... + 80889.

It is an arithmetic number, because the mean of its divisors is an integer number (18702918).

Almost surely, 2^153938439 is an apocalyptic number.

153938439 is a deficient number, since it is larger than the sum of its proper divisors (70496577).

153938439 is a wasteful number, since it uses less digits than its factorization.

153938439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159966 (or 159963 counting only the distinct ones).

The product of its digits is 349920, while the sum is 45.

The square root of 153938439 is about 12407.1930346876. The cubic root of 153938439 is about 535.9394087129.

It can be divided in two parts, 15393 and 8439, that added together give a palindrome (23832).

The spelling of 153938439 in words is "one hundred fifty-three million, nine hundred thirty-eight thousand, four hundred thirty-nine".