139328532 has 192 divisors, whose sum is σ = 450455040. Its totient is φ = 36329472.

The previous prime is 139328461. The next prime is 139328533. The reversal of 139328532 is 235823931.

139328532 is a `hidden beast` number, since 13 + 93 + 28 + 532 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139328533) 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 63 ways as a sum of consecutive naturals, for example, 475378 + ... + 475670.

It is an arithmetic number, because the mean of its divisors is an integer number (2346120).

Almost surely, 2^139328532 is an apocalyptic number.

139328532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 139328532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (225227520).

139328532 is an abundant number, since it is smaller than the sum of its proper divisors (311126508).

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

139328532 is a wasteful number, since it uses less digits than its factorization.

139328532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367 (or 359 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 139328532 is about 11803.7507598221. The cubic root of 139328532 is about 518.4179381224.

The spelling of 139328532 in words is "one hundred thirty-nine million, three hundred twenty-eight thousand, five hundred thirty-two".