139824139 has 16 divisors (see below), whose sum is σ = 174919360. Its totient is φ = 108812160.

The previous prime is 139824121. The next prime is 139824143. The reversal of 139824139 is 931428931.

It is a cyclic number.

It is not a de Polignac number, because 139824139 - 2⁷ = 139824011 is a prime.

It is not an unprimeable number, because it can be changed into a prime (139824149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7044 + ... + 18145.

It is an arithmetic number, because the mean of its divisors is an integer number (10932460).

Almost surely, 2^139824139 is an apocalyptic number.

139824139 is a deficient number, since it is larger than the sum of its proper divisors (35095221).

139824139 is a wasteful number, since it uses less digits than its factorization.

139824139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25270.

The product of its digits is 46656, while the sum is 40.

The square root of 139824139 is about 11824.7257473482. The cubic root of 139824139 is about 519.0319007026.

The spelling of 139824139 in words is "one hundred thirty-nine million, eight hundred twenty-four thousand, one hundred thirty-nine".