139076737 has 2 divisors, whose sum is σ = 139076738. Its totient is φ = 139076736.

The previous prime is 139076719. The next prime is 139076759. The reversal of 139076737 is 737670931.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 127780416 + 11296321 = 11304^2 + 3361^2 .

It is an emirp because it is prime and its reverse (737670931) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-139076737 is a prime.

It is equal to p_7862884 and since 139076737 and 7862884 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 139076693 and 139076702.

It is not a weakly prime, because it can be changed into another prime (139076537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69538368 + 69538369.

It is an arithmetic number, because the mean of its divisors is an integer number (69538369).

Almost surely, 2^139076737 is an apocalyptic number.

It is an amenable number.

139076737 is a deficient number, since it is larger than the sum of its proper divisors (1).

139076737 is an equidigital number, since it uses as much as digits as its factorization.

139076737 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 166698, while the sum is 43.

The square root of 139076737 is about 11793.0800472141. The cubic root of 139076737 is about 518.1054542486.

The spelling of 139076737 in words is "one hundred thirty-nine million, seventy-six thousand, seven hundred thirty-seven".