139489048 has 8 divisors (see below), whose sum is σ = 261541980. Its totient is φ = 69744520.

The previous prime is 139488991. The next prime is 139489061. The reversal of 139489048 is 840984931.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 139488989 and 139489007.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 8718058 + ... + 8718073.

Almost surely, 2^139489048 is an apocalyptic number.

It is an amenable number.

139489048 is a deficient number, since it is larger than the sum of its proper divisors (122052932).

139489048 is a wasteful number, since it uses less digits than its factorization.

139489048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17436137 (or 17436133 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 46.

The square root of 139489048 is about 11810.5481667872. The cubic root of 139489048 is about 518.6169460279.

The spelling of 139489048 in words is "one hundred thirty-nine million, four hundred eighty-nine thousand, forty-eight".