139137652 has 12 divisors (see below), whose sum is σ = 244555780. Its totient is φ = 69264576.

The previous prime is 139137643. The next prime is 139137659. The reversal of 139137652 is 256731931.

It can be written as a sum of positive squares in 2 ways, for example, as 133957476 + 5180176 = 11574^2 + 2276^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139137659) 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 3 ways as a sum of consecutive naturals, for example, 75033 + ... + 76864.

Almost surely, 2^139137652 is an apocalyptic number.

It is an amenable number.

139137652 is a deficient number, since it is larger than the sum of its proper divisors (105418128).

139137652 is a wasteful number, since it uses less digits than its factorization.

139137652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152130 (or 152128 counting only the distinct ones).

The product of its digits is 34020, while the sum is 37.

The square root of 139137652 is about 11795.6624231113. The cubic root of 139137652 is about 518.1810858454.

The spelling of 139137652 in words is "one hundred thirty-nine million, one hundred thirty-seven thousand, six hundred fifty-two".