139689048 has 16 divisors (see below), whose sum is σ = 349222680. Its totient is φ = 46563008.

The previous prime is 139689041. The next prime is 139689061. The reversal of 139689048 is 840986931.

It is a super-2 number, since 2×139689048² = 39026060262292608, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 139688988 and 139689006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139689041) 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 in 3 ways as a sum of consecutive naturals, for example, 2910165 + ... + 2910212.

Almost surely, 2^139689048 is an apocalyptic number.

It is an amenable number.

139689048 is an abundant number, since it is smaller than the sum of its proper divisors (209533632).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

139689048 is a wasteful number, since it uses less digits than its factorization.

139689048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5820386 (or 5820382 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 48.

The square root of 139689048 is about 11819.0121414609. The cubic root of 139689048 is about 518.8646927319.

The spelling of 139689048 in words is "one hundred thirty-nine million, six hundred eighty-nine thousand, forty-eight".