139248532 has 24 divisors (see below), whose sum is σ = 256132800. Its totient is φ = 66111936.

The previous prime is 139248523. The next prime is 139248533. The reversal of 139248532 is 235842931.

It is a junction number, because it is equal to n+sod(n) for n = 139248491 and 139248500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139248533) 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 7 ways as a sum of consecutive naturals, for example, 7344 + ... + 18232.

It is an arithmetic number, because the mean of its divisors is an integer number (10672200).

Almost surely, 2^139248532 is an apocalyptic number.

It is an amenable number.

139248532 is a deficient number, since it is larger than the sum of its proper divisors (116884268).

139248532 is a wasteful number, since it uses less digits than its factorization.

139248532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11055 (or 11053 counting only the distinct ones).

The product of its digits is 51840, while the sum is 37.

The square root of 139248532 is about 11800.3615198857. The cubic root of 139248532 is about 518.3186969626.

The spelling of 139248532 in words is "one hundred thirty-nine million, two hundred forty-eight thousand, five hundred thirty-two".