139070828 has 48 divisors (see below), whose sum is σ = 268692480. Its totient is φ = 62593344.

The previous prime is 139070821. The next prime is 139070831. The reversal of 139070828 is 828070931.

It is a junction number, because it is equal to n+sod(n) for n = 139070791 and 139070800.

It is not an unprimeable number, because it can be changed into a prime (139070821) 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 15 ways as a sum of consecutive naturals, for example, 623525 + ... + 623747.

It is an arithmetic number, because the mean of its divisors is an integer number (5597760).

Almost surely, 2^139070828 is an apocalyptic number.

It is an amenable number.

139070828 is a deficient number, since it is larger than the sum of its proper divisors (129621652).

139070828 is a wasteful number, since it uses less digits than its factorization.

139070828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486 (or 484 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 38.

The square root of 139070828 is about 11792.8295162781. The cubic root of 139070828 is about 518.0981165046.

The spelling of 139070828 in words is "one hundred thirty-nine million, seventy thousand, eight hundred twenty-eight".