139016959 has 2 divisors, whose sum is σ = 139016960. Its totient is φ = 139016958.

The previous prime is 139016957. The next prime is 139016963. The reversal of 139016959 is 959610931.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 139016959 - 2¹ = 139016957 is a prime.

Together with 139016957, it forms a pair of twin primes.

It is equal to p_7859716 and since 139016959 and 7859716 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (139016957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69508479 + 69508480.

It is an arithmetic number, because the mean of its divisors is an integer number (69508480).

Almost surely, 2^139016959 is an apocalyptic number.

139016959 is a deficient number, since it is larger than the sum of its proper divisors (1).

139016959 is an equidigital number, since it uses as much as digits as its factorization.

139016959 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 65610, while the sum is 43.

The square root of 139016959 is about 11790.5453224183. The cubic root of 139016959 is about 518.0312128695.

The spelling of 139016959 in words is "one hundred thirty-nine million, sixteen thousand, nine hundred fifty-nine".