139295306 has 8 divisors (see below), whose sum is σ = 214590180. Its totient is φ = 67765248.

The previous prime is 139295279. The next prime is 139295311. The reversal of 139295306 is 603592931.

It can be written as a sum of positive squares in 2 ways, for example, as 137710225 + 1585081 = 11735^2 + 1259^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 139295306.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 941111 + ... + 941258.

Almost surely, 2^139295306 is an apocalyptic number.

139295306 is a deficient number, since it is larger than the sum of its proper divisors (75294874).

139295306 is a wasteful number, since it uses less digits than its factorization.

139295306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1882408.

The product of its (nonzero) digits is 43740, while the sum is 38.

The square root of 139295306 is about 11802.3432419160. The cubic root of 139295306 is about 518.3767254013.

The spelling of 139295306 in words is "one hundred thirty-nine million, two hundred ninety-five thousand, three hundred six".