139399151 has 2 divisors, whose sum is σ = 139399152. Its totient is φ = 139399150.

The previous prime is 139399147. The next prime is 139399171. The reversal of 139399151 is 151993931.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 139399151 - 2² = 139399147 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 139399099 and 139399108.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (139399171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69699575 + 69699576.

It is an arithmetic number, because the mean of its divisors is an integer number (69699576).

Almost surely, 2^139399151 is an apocalyptic number.

139399151 is a deficient number, since it is larger than the sum of its proper divisors (1).

139399151 is an equidigital number, since it uses as much as digits as its factorization.

139399151 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32805, while the sum is 41.

The square root of 139399151 is about 11806.7417605366. The cubic root of 139399151 is about 518.5055104530.

The spelling of 139399151 in words is "one hundred thirty-nine million, three hundred ninety-nine thousand, one hundred fifty-one".