139203046 has 8 divisors (see below), whose sum is σ = 209671704. Its totient is φ = 69312480.

The previous prime is 139203023. The next prime is 139203047. The reversal of 139203046 is 640302931.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139203047) 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 3 ways as a sum of consecutive naturals, for example, 143920 + ... + 144883.

It is an arithmetic number, because the mean of its divisors is an integer number (26208963).

Almost surely, 2^139203046 is an apocalyptic number.

139203046 is a deficient number, since it is larger than the sum of its proper divisors (70468658).

139203046 is a wasteful number, since it uses less digits than its factorization.

139203046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 289046.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 139203046 is about 11798.4340486354. The cubic root of 139203046 is about 518.2622539694.

Adding to 139203046 its reverse (640302931), we get a palindrome (779505977).

The spelling of 139203046 in words is "one hundred thirty-nine million, two hundred three thousand, forty-six".