139369042 has 8 divisors (see below), whose sum is σ = 210222000. Its totient is φ = 69295044.

The previous prime is 139369039. The next prime is 139369051. The reversal of 139369042 is 240963931.

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

It is a junction number, because it is equal to n+sod(n) for n = 139368992 and 139369010.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 194292 + ... + 195007.

It is an arithmetic number, because the mean of its divisors is an integer number (26277750).

Almost surely, 2^139369042 is an apocalyptic number.

139369042 is a deficient number, since it is larger than the sum of its proper divisors (70852958).

139369042 is a wasteful number, since it uses less digits than its factorization.

139369042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389480.

The product of its (nonzero) digits is 34992, while the sum is 37.

The square root of 139369042 is about 11805.4666150898. The cubic root of 139369042 is about 518.4681768767.

The spelling of 139369042 in words is "one hundred thirty-nine million, three hundred sixty-nine thousand, forty-two".