139205853 has 12 divisors (see below), whose sum is σ = 201221020. Its totient is φ = 92736576.

The previous prime is 139205851. The next prime is 139205861. The reversal of 139205853 is 358502931.

It can be written as a sum of positive squares in 2 ways, for example, as 137663289 + 1542564 = 11733^2 + 1242^2 .

It is not a de Polignac number, because 139205853 - 2¹ = 139205851 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 (139205851) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 9675 + ... + 19287.

Almost surely, 2^139205853 is an apocalyptic number.

It is an amenable number.

139205853 is a deficient number, since it is larger than the sum of its proper divisors (62015167).

139205853 is a wasteful number, since it uses less digits than its factorization.

139205853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11228 (or 11225 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 139205853 is about 11798.5530045002. The cubic root of 139205853 is about 518.2657374956.

The spelling of 139205853 in words is "one hundred thirty-nine million, two hundred five thousand, eight hundred fifty-three".