139124048 has 40 divisors (see below), whose sum is σ = 310343232. Its totient is φ = 59182848.

The previous prime is 139124017. The next prime is 139124059. The reversal of 139124048 is 840421931.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10811 + ... + 19877.

Almost surely, 2^139124048 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 139124048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155171616).

139124048 is an abundant number, since it is smaller than the sum of its proper divisors (171219184).

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

139124048 is a wasteful number, since it uses less digits than its factorization.

139124048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9219 (or 9213 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 139124048 is about 11795.0857563648. The cubic root of 139124048 is about 518.1641971381.

Adding to 139124048 its reverse (840421931), we get a palindrome (979545979).

The spelling of 139124048 in words is "one hundred thirty-nine million, one hundred twenty-four thousand, forty-eight".