139012764 has 48 divisors (see below), whose sum is σ = 357388416. Its totient is φ = 41704000.

The previous prime is 139012733. The next prime is 139012771. The reversal of 139012764 is 467210931.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 8119 + ... + 18545.

It is an arithmetic number, because the mean of its divisors is an integer number (7445592).

Almost surely, 2^139012764 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 139012764, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (178694208).

139012764 is an abundant number, since it is smaller than the sum of its proper divisors (218375652).

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

139012764 is a wasteful number, since it uses less digits than its factorization.

139012764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10546 (or 10544 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 139012764 is about 11790.3674243002. The cubic root of 139012764 is about 518.0260020837.

The spelling of 139012764 in words is "one hundred thirty-nine million, twelve thousand, seven hundred sixty-four".