139609711 has 2 divisors, whose sum is σ = 139609712. Its totient is φ = 139609710.

The previous prime is 139609681. The next prime is 139609727. The reversal of 139609711 is 117906931.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 139609711 - 2¹³ = 139601519 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (139600711) 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, 69804855 + 69804856.

It is an arithmetic number, because the mean of its divisors is an integer number (69804856).

Almost surely, 2^139609711 is an apocalyptic number.

139609711 is a deficient number, since it is larger than the sum of its proper divisors (1).

139609711 is an equidigital number, since it uses as much as digits as its factorization.

139609711 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10206, while the sum is 37.

The square root of 139609711 is about 11815.6553351898. The cubic root of 139609711 is about 518.7664436458.

The spelling of 139609711 in words is "one hundred thirty-nine million, six hundred nine thousand, seven hundred eleven".