139711147 has 6 divisors (see below), whose sum is σ = 141832068. Its totient is φ = 137621484.

The previous prime is 139711139. The next prime is 139711189. The reversal of 139711147 is 741117931.

It is a happy number.

139711147 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 139711147 - 2³ = 139711139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (139711447) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11073 + ... + 20050.

It is an arithmetic number, because the mean of its divisors is an integer number (23638678).

Almost surely, 2^139711147 is an apocalyptic number.

139711147 is a deficient number, since it is larger than the sum of its proper divisors (2120921).

139711147 is an frugal number, since it uses more digits than its factorization.

139711147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31257 (or 31190 counting only the distinct ones).

The product of its digits is 5292, while the sum is 34.

The square root of 139711147 is about 11819.9469964971. The cubic root of 139711147 is about 518.8920529924.

It can be divided in two parts, 1397 and 11147, that added together give a square (12544 = 112²).

The spelling of 139711147 in words is "one hundred thirty-nine million, seven hundred eleven thousand, one hundred forty-seven".