139738653 has 6 divisors (see below), whose sum is σ = 201844734. Its totient is φ = 93159096.

The previous prime is 139738649. The next prime is 139738663. The reversal of 139738653 is 356837931.

It can be written as a sum of positive squares in only one way, i.e., 129891609 + 9847044 = 11397^2 + 3138^2 .

It is not a de Polignac number, because 139738653 - 2² = 139738649 is a prime.

It is a super-2 number, since 2×139738653² = 39053782284508818, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 139738599 and 139738608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139738663) 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 5 ways as a sum of consecutive naturals, for example, 7763250 + ... + 7763267.

It is an arithmetic number, because the mean of its divisors is an integer number (33640789).

Almost surely, 2^139738653 is an apocalyptic number.

It is an amenable number.

139738653 is a deficient number, since it is larger than the sum of its proper divisors (62106081).

139738653 is a wasteful number, since it uses less digits than its factorization.

139738653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15526523 (or 15526520 counting only the distinct ones).

The product of its digits is 408240, while the sum is 45.

The square root of 139738653 is about 11821.1104808305. The cubic root of 139738653 is about 518.9261035044.

The spelling of 139738653 in words is "one hundred thirty-nine million, seven hundred thirty-eight thousand, six hundred fifty-three".