139232106 has 48 divisors (see below), whose sum is σ = 326073384. Its totient is φ = 42682752.

The previous prime is 139232101. The next prime is 139232123. The reversal of 139232106 is 601232931.

It can be written as a sum of positive squares in 4 ways, for example, as 67914081 + 71318025 = 8241^2 + 8445^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 139232106.

It is not an unprimeable number, because it can be changed into a prime (139232101) 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 23 ways as a sum of consecutive naturals, for example, 73240 + ... + 75116.

Almost surely, 2^139232106 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 139232106, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (163036692).

139232106 is an abundant number, since it is smaller than the sum of its proper divisors (186841278).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

139232106 is a wasteful number, since it uses less digits than its factorization.

139232106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2215 (or 2212 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 139232106 is about 11799.6655037336. The cubic root of 139232106 is about 518.2983155683.

The spelling of 139232106 in words is "one hundred thirty-nine million, two hundred thirty-two thousand, one hundred six".