139011047 has 16 divisors (see below), whose sum is σ = 161186112. Its totient is φ = 117427200.

The previous prime is 139011029. The next prime is 139011071. The reversal of 139011047 is 740110931.

It is a cyclic number.

It is not a de Polignac number, because 139011047 - 2¹⁴ = 138994663 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139011247) 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 15 ways as a sum of consecutive naturals, for example, 249293 + ... + 249849.

It is an arithmetic number, because the mean of its divisors is an integer number (10074132).

Almost surely, 2^139011047 is an apocalyptic number.

139011047 is a deficient number, since it is larger than the sum of its proper divisors (22175065).

139011047 is a wasteful number, since it uses less digits than its factorization.

139011047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1018.

The product of its (nonzero) digits is 756, while the sum is 26.

The square root of 139011047 is about 11790.2946103988. The cubic root of 139011047 is about 518.0238692956.

Adding to 139011047 its reverse (740110931), we get a palindrome (879121978).

The spelling of 139011047 in words is "one hundred thirty-nine million, eleven thousand, forty-seven".