139847311 has 2 divisors, whose sum is σ = 139847312. Its totient is φ = 139847310.

The previous prime is 139847263. The next prime is 139847329. The reversal of 139847311 is 113748931.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 139847311 - 2²⁷ = 5629583 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (139847371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69923655 + 69923656.

It is an arithmetic number, because the mean of its divisors is an integer number (69923656).

Almost surely, 2^139847311 is an apocalyptic number.

139847311 is a deficient number, since it is larger than the sum of its proper divisors (1).

139847311 is an equidigital number, since it uses as much as digits as its factorization.

139847311 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 37.

The square root of 139847311 is about 11825.7055180653. The cubic root of 139847311 is about 519.0605708664.

The spelling of 139847311 in words is "one hundred thirty-nine million, eight hundred forty-seven thousand, three hundred eleven".