139448846 has 4 divisors (see below), whose sum is σ = 209173272. Its totient is φ = 69724422.

The previous prime is 139448843. The next prime is 139448861. The reversal of 139448846 is 648844931.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 139448846.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139448843) by changing a digit.

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 as a sum of consecutive naturals, namely, 34862210 + ... + 34862213.

It is an arithmetic number, because the mean of its divisors is an integer number (52293318).

Almost surely, 2^139448846 is an apocalyptic number.

139448846 is a deficient number, since it is larger than the sum of its proper divisors (69724426).

139448846 is an equidigital number, since it uses as much as digits as its factorization.

139448846 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69724425.

The product of its digits is 663552, while the sum is 47.

The square root of 139448846 is about 11808.8460909608. The cubic root of 139448846 is about 518.5671178823.

The spelling of 139448846 in words is "one hundred thirty-nine million, four hundred forty-eight thousand, eight hundred forty-six".