139160537 has 2 divisors, whose sum is σ = 139160538. Its totient is φ = 139160536.

The previous prime is 139160491. The next prime is 139160551. The reversal of 139160537 is 735061931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 116985856 + 22174681 = 10816^2 + 4709^2 .

It is an emirp because it is prime and its reverse (735061931) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 139160537 - 2¹⁴ = 139144153 is a prime.

It is equal to p_7867340 and since 139160537 and 7867340 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 = 139160497 and 139160506.

It is not a weakly prime, because it can be changed into another prime (139160597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69580268 + 69580269.

It is an arithmetic number, because the mean of its divisors is an integer number (69580269).

Almost surely, 2^139160537 is an apocalyptic number.

It is an amenable number.

139160537 is a deficient number, since it is larger than the sum of its proper divisors (1).

139160537 is an equidigital number, since it uses as much as digits as its factorization.

139160537 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17010, while the sum is 35.

The square root of 139160537 is about 11796.6324432017. The cubic root of 139160537 is about 518.2094939815.

The spelling of 139160537 in words is "one hundred thirty-nine million, one hundred sixty thousand, five hundred thirty-seven".