139255029 has 6 divisors (see below), whose sum is σ = 201146166. Its totient is φ = 92836680.

The previous prime is 139255001. The next prime is 139255033. The reversal of 139255029 is 920552931.

It is a happy number.

139255029 is a `hidden beast` number, since 13 + 92 + 550 + 2 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 123810129 + 15444900 = 11127^2 + 3930^2 .

It is not a de Polignac number, because 139255029 - 2¹⁶ = 139189493 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 139254984 and 139255002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139255099) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7736382 + ... + 7736399.

It is an arithmetic number, because the mean of its divisors is an integer number (33524361).

Almost surely, 2^139255029 is an apocalyptic number.

It is an amenable number.

139255029 is a deficient number, since it is larger than the sum of its proper divisors (61891137).

139255029 is a wasteful number, since it uses less digits than its factorization.

139255029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15472787 (or 15472784 counting only the distinct ones).

The product of its (nonzero) digits is 24300, while the sum is 36.

The square root of 139255029 is about 11800.6368048508. The cubic root of 139255029 is about 518.3267580031.

The spelling of 139255029 in words is "one hundred thirty-nine million, two hundred fifty-five thousand, twenty-nine".