139904794 has 8 divisors (see below), whose sum is σ = 210307968. Its totient is φ = 69802140.

The previous prime is 139904783. The next prime is 139904801. The reversal of 139904794 is 497409931.

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 73962 + ... + 75829.

It is an arithmetic number, because the mean of its divisors is an integer number (26288496).

Almost surely, 2^139904794 is an apocalyptic number.

139904794 is a deficient number, since it is larger than the sum of its proper divisors (70403174).

139904794 is a wasteful number, since it uses less digits than its factorization.

139904794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150260.

The product of its (nonzero) digits is 244944, while the sum is 46.

The square root of 139904794 is about 11828.1356941827. The cubic root of 139904794 is about 519.1316795430.

The spelling of 139904794 in words is "one hundred thirty-nine million, nine hundred four thousand, seven hundred ninety-four".