139306468 has 24 divisors (see below), whose sum is σ = 279139392. Its totient is φ = 59589984.

The previous prime is 139306463. The next prime is 139306477. The reversal of 139306468 is 864603931.

It is a self number, because there is not a number n which added to its sum of digits gives 139306468.

It is not an unprimeable number, because it can be changed into a prime (139306463) 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 7 ways as a sum of consecutive naturals, for example, 11346 + ... + 20182.

It is an arithmetic number, because the mean of its divisors is an integer number (11630808).

Almost surely, 2^139306468 is an apocalyptic number.

It is an amenable number.

139306468 is an abundant number, since it is smaller than the sum of its proper divisors (139832924).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

139306468 is a wasteful number, since it uses less digits than its factorization.

139306468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9411 (or 9409 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 40.

The square root of 139306468 is about 11802.8161046421. The cubic root of 139306468 is about 518.3905712051.

The spelling of 139306468 in words is "one hundred thirty-nine million, three hundred six thousand, four hundred sixty-eight".