139729689 has 12 divisors (see below), whose sum is σ = 220180272. Its totient is φ = 84684600.

The previous prime is 139729673. The next prime is 139729691. The reversal of 139729689 is 986927931.

It is not a de Polignac number, because 139729689 - 2⁴ = 139729673 is a prime.

It is not an unprimeable number, because it can be changed into a prime (139729609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 705607 + ... + 705804.

It is an arithmetic number, because the mean of its divisors is an integer number (18348356).

Almost surely, 2^139729689 is an apocalyptic number.

It is an amenable number.

139729689 is a deficient number, since it is larger than the sum of its proper divisors (80450583).

139729689 is a wasteful number, since it uses less digits than its factorization.

139729689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1411428 (or 1411425 counting only the distinct ones).

The product of its digits is 1469664, while the sum is 54.

The square root of 139729689 is about 11820.7313225536. The cubic root of 139729689 is about 518.9150071876.

The spelling of 139729689 in words is "one hundred thirty-nine million, seven hundred twenty-nine thousand, six hundred eighty-nine".