139328468 has 6 divisors (see below), whose sum is σ = 243824826. Its totient is φ = 69664232.

The previous prime is 139328461. The next prime is 139328533. The reversal of 139328468 is 864823931.

It can be written as a sum of positive squares in only one way, i.e., 90859024 + 48469444 = 9532^2 + 6962^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139328461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17416055 + ... + 17416062.

It is an arithmetic number, because the mean of its divisors is an integer number (40637471).

Almost surely, 2^139328468 is an apocalyptic number.

It is an amenable number.

139328468 is a deficient number, since it is larger than the sum of its proper divisors (104496358).

139328468 is a wasteful number, since it uses less digits than its factorization.

139328468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34832121 (or 34832119 counting only the distinct ones).

The product of its digits is 248832, while the sum is 44.

The square root of 139328468 is about 11803.7480488191. The cubic root of 139328468 is about 518.4178587447.

The spelling of 139328468 in words is "one hundred thirty-nine million, three hundred twenty-eight thousand, four hundred sixty-eight".