139669332 has 72 divisors (see below), whose sum is σ = 366709728. Its totient is φ = 41321280.

The previous prime is 139669319. The next prime is 139669337. The reversal of 139669332 is 233966931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139669337) 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 23 ways as a sum of consecutive naturals, for example, 61318 + ... + 63554.

Almost surely, 2^139669332 is an apocalyptic number.

139669332 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 139669332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (183354864).

139669332 is an abundant number, since it is smaller than the sum of its proper divisors (227040396).

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

139669332 is a wasteful number, since it uses less digits than its factorization.

139669332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2309 (or 2296 counting only the distinct ones).

The product of its digits is 157464, while the sum is 42.

The square root of 139669332 is about 11818.1780321672. The cubic root of 139669332 is about 518.8402803727.

The spelling of 139669332 in words is "one hundred thirty-nine million, six hundred sixty-nine thousand, three hundred thirty-two".