139412078 has 32 divisors (see below), whose sum is σ = 232530816. Its totient is φ = 62270208.

The previous prime is 139412069. The next prime is 139412089. The reversal of 139412078 is 870214931.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 300875 + ... + 301337.

It is an arithmetic number, because the mean of its divisors is an integer number (7266588).

Almost surely, 2^139412078 is an apocalyptic number.

139412078 is a deficient number, since it is larger than the sum of its proper divisors (93118738).

139412078 is a wasteful number, since it uses less digits than its factorization.

139412078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 828.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 139412078 is about 11807.2891893101. The cubic root of 139412078 is about 518.5215376036.

The spelling of 139412078 in words is "one hundred thirty-nine million, four hundred twelve thousand, seventy-eight".