139339948 has 12 divisors (see below), whose sum is σ = 266012712. Its totient is φ = 63336320.

The previous prime is 139339943. The next prime is 139340027. The reversal of 139339948 is 849933931.

It is a super-2 number, since 2×139339948² = 38831242217285408, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (139339943) 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, 1583365 + ... + 1583452.

It is an arithmetic number, because the mean of its divisors is an integer number (22167726).

Almost surely, 2^139339948 is an apocalyptic number.

It is an amenable number.

139339948 is a deficient number, since it is larger than the sum of its proper divisors (126672764).

139339948 is a wasteful number, since it uses less digits than its factorization.

139339948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3166832 (or 3166830 counting only the distinct ones).

The product of its digits is 629856, while the sum is 49.

The square root of 139339948 is about 11804.2343250208. The cubic root of 139339948 is about 518.4320967384.

The spelling of 139339948 in words is "one hundred thirty-nine million, three hundred thirty-nine thousand, nine hundred forty-eight".