139771124 has 6 divisors (see below), whose sum is σ = 244599474. Its totient is φ = 69885560.

The previous prime is 139771117. The next prime is 139771139. The reversal of 139771124 is 421177931.

139771124 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 128414224 + 11356900 = 11332^2 + 3370^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17471387 + ... + 17471394.

It is an arithmetic number, because the mean of its divisors is an integer number (40766579).

Almost surely, 2^139771124 is an apocalyptic number.

It is an amenable number.

139771124 is a deficient number, since it is larger than the sum of its proper divisors (104828350).

139771124 is a wasteful number, since it uses less digits than its factorization.

139771124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34942785 (or 34942783 counting only the distinct ones).

The product of its digits is 10584, while the sum is 35.

The square root of 139771124 is about 11822.4838337804. The cubic root of 139771124 is about 518.9662945900.

The spelling of 139771124 in words is "one hundred thirty-nine million, seven hundred seventy-one thousand, one hundred twenty-four".