182438139 has 16 divisors (see below), whose sum is σ = 273353472. Its totient is φ = 107387808.

The previous prime is 182438107. The next prime is 182438173. The reversal of 182438139 is 931834281.

It is not a de Polignac number, because 182438139 - 2⁵ = 182438107 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 182438097 and 182438106.

It is not an unprimeable number, because it can be changed into a prime (182438189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100797 + ... + 102590.

It is an arithmetic number, because the mean of its divisors is an integer number (17084592).

Almost surely, 2^182438139 is an apocalyptic number.

182438139 is a deficient number, since it is larger than the sum of its proper divisors (90915333).

182438139 is a wasteful number, since it uses less digits than its factorization.

182438139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203426.

The product of its digits is 41472, while the sum is 39.

The square root of 182438139 is about 13506.9663137212. The cubic root of 182438139 is about 567.1595002441.

The spelling of 182438139 in words is "one hundred eighty-two million, four hundred thirty-eight thousand, one hundred thirty-nine".