139202036 has 12 divisors (see below), whose sum is σ = 243704580. Its totient is φ = 69572160.

The previous prime is 139202023. The next prime is 139202053. The reversal of 139202036 is 630202931.

It can be written as a sum of positive squares in 2 ways, for example, as 111429136 + 27772900 = 10556^2 + 5270^2 .

It is a junction number, because it is equal to n+sod(n) for n = 139201996 and 139202014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6560 + ... + 17928.

It is an arithmetic number, because the mean of its divisors is an integer number (20308715).

Almost surely, 2^139202036 is an apocalyptic number.

It is an amenable number.

139202036 is a deficient number, since it is larger than the sum of its proper divisors (104502544).

139202036 is a wasteful number, since it uses less digits than its factorization.

139202036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14434 (or 14432 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 139202036 is about 11798.3912462674. The cubic root of 139202036 is about 518.2610005339.

Adding to 139202036 its reverse (630202931), we get a palindrome (769404967).

The spelling of 139202036 in words is "one hundred thirty-nine million, two hundred two thousand, thirty-six".