139334171 has 2 divisors, whose sum is σ = 139334172. Its totient is φ = 139334170.

The previous prime is 139334149. The next prime is 139334213. The reversal of 139334171 is 171433931.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 139334171 - 2²² = 135139867 is a prime.

It is a super-2 number, since 2×139334171² = 38828022416514482, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (139334471) 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 as a sum of consecutive naturals, namely, 69667085 + 69667086.

It is an arithmetic number, because the mean of its divisors is an integer number (69667086).

Almost surely, 2^139334171 is an apocalyptic number.

139334171 is a deficient number, since it is larger than the sum of its proper divisors (1).

139334171 is an equidigital number, since it uses as much as digits as its factorization.

139334171 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6804, while the sum is 32.

The square root of 139334171 is about 11803.9896221574. The cubic root of 139334171 is about 518.4249319503.

The spelling of 139334171 in words is "one hundred thirty-nine million, three hundred thirty-four thousand, one hundred seventy-one".