139106502 has 12 divisors (see below), whose sum is σ = 301397460. Its totient is φ = 46368828.

The previous prime is 139106501. The next prime is 139106531. The reversal of 139106502 is 205601931.

139106502 is a `hidden beast` number, since 1 + 3 + 9 + 1 + 0 + 650 + 2 = 666.

It is a super-3 number, since 3×139106502³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139106501) 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 5 ways as a sum of consecutive naturals, for example, 3864052 + ... + 3864087.

It is an arithmetic number, because the mean of its divisors is an integer number (25116455).

Almost surely, 2^139106502 is an apocalyptic number.

139106502 is an abundant number, since it is smaller than the sum of its proper divisors (162290958).

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

139106502 is a wasteful number, since it uses less digits than its factorization.

139106502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7728147 (or 7728144 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 139106502 is about 11794.3419485786. The cubic root of 139106502 is about 518.1424130028.

The spelling of 139106502 in words is "one hundred thirty-nine million, one hundred six thousand, five hundred two".