139255101 has 6 divisors (see below), whose sum is σ = 201146270. Its totient is φ = 92836728.

The previous prime is 139255099. The next prime is 139255169. The reversal of 139255101 is 101552931.

It can be written as a sum of positive squares in only one way, i.e., 139004100 + 251001 = 11790^2 + 501^2 .

It is not a de Polignac number, because 139255101 - 2¹ = 139255099 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139255001) 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, 7736386 + ... + 7736403.

Almost surely, 2^139255101 is an apocalyptic number.

It is an amenable number.

139255101 is a deficient number, since it is larger than the sum of its proper divisors (61891169).

139255101 is a wasteful number, since it uses less digits than its factorization.

139255101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15472795 (or 15472792 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 27.

The square root of 139255101 is about 11800.6398555333. The cubic root of 139255101 is about 518.3268473345.

The spelling of 139255101 in words is "one hundred thirty-nine million, two hundred fifty-five thousand, one hundred one".