139245711 has 24 divisors (see below), whose sum is σ = 205309440. Its totient is φ = 83880720.

The previous prime is 139245677. The next prime is 139245713. The reversal of 139245711 is 117542931.

It is not a de Polignac number, because 139245711 - 2¹⁰ = 139244687 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139245713) 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 in 23 ways as a sum of consecutive naturals, for example, 63906 + ... + 66048.

It is an arithmetic number, because the mean of its divisors is an integer number (8554560).

Almost surely, 2^139245711 is an apocalyptic number.

139245711 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

139245711 is a deficient number, since it is larger than the sum of its proper divisors (66063729).

139245711 is a wasteful number, since it uses less digits than its factorization.

139245711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2347 (or 2336 counting only the distinct ones).

The product of its digits is 7560, while the sum is 33.

The square root of 139245711 is about 11800.2419890441. The cubic root of 139245711 is about 518.3151967774.

The spelling of 139245711 in words is "one hundred thirty-nine million, two hundred forty-five thousand, seven hundred eleven".