139073760 has 432 divisors, whose sum is σ = 580363056. Its totient is φ = 31352832.

The previous prime is 139073743. The next prime is 139073771. The reversal of 139073760 is 67370931.

It is a tau number, because it is divible by the number of its divisors (432).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1905084 + ... + 1905156.

It is an arithmetic number, because the mean of its divisors is an integer number (1343433).

Almost surely, 2^139073760 is an apocalyptic number.

139073760 is a gapful number since it is divisible by the number (10) 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 139073760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (290181528).

139073760 is an abundant number, since it is smaller than the sum of its proper divisors (441289296).

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

139073760 is an equidigital number, since it uses as much as digits as its factorization.

139073760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117 (or 90 counting only the distinct ones).

The product of its (nonzero) digits is 23814, while the sum is 36.

The square root of 139073760 is about 11792.9538284520. The cubic root of 139073760 is about 518.1017574623.

The spelling of 139073760 in words is "one hundred thirty-nine million, seventy-three thousand, seven hundred sixty".