139814532 has 144 divisors (see below), whose sum is σ = 429600640. Its totient is φ = 39061440.

The previous prime is 139814531. The next prime is 139814537. The reversal of 139814532 is 235418931.

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 (139814531) 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 47 ways as a sum of consecutive naturals, for example, 169473 + ... + 170295.

Almost surely, 2^139814532 is an apocalyptic number.

139814532 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 139814532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (214800320).

139814532 is an abundant number, since it is smaller than the sum of its proper divisors (289786108).

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

139814532 is a wasteful number, since it uses less digits than its factorization.

139814532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 871 (or 852 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 139814532 is about 11824.3195153040. The cubic root of 139814532 is about 519.0200132615.

The spelling of 139814532 in words is "one hundred thirty-nine million, eight hundred fourteen thousand, five hundred thirty-two".