139153187 has 2 divisors, whose sum is σ = 139153188. Its totient is φ = 139153186.

The previous prime is 139153163. The next prime is 139153199. The reversal of 139153187 is 781351931.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 139153187 - 2¹² = 139149091 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 139153187.

It is not a weakly prime, because it can be changed into another prime (139153087) 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 as a sum of consecutive naturals, namely, 69576593 + 69576594.

It is an arithmetic number, because the mean of its divisors is an integer number (69576594).

Almost surely, 2^139153187 is an apocalyptic number.

139153187 is a deficient number, since it is larger than the sum of its proper divisors (1).

139153187 is an equidigital number, since it uses as much as digits as its factorization.

139153187 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22680, while the sum is 38.

The square root of 139153187 is about 11796.3209095039. The cubic root of 139153187 is about 518.2003704495.

The spelling of 139153187 in words is "one hundred thirty-nine million, one hundred fifty-three thousand, one hundred eighty-seven".