139772736 has 112 divisors (see below), whose sum is σ = 419892480. Its totient is φ = 45573120.

The previous prime is 139772729. The next prime is 139772741. The reversal of 139772736 is 637277931.

It is a junction number, because it is equal to n+sod(n) for n = 139772691 and 139772700.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80356 + ... + 82076.

It is an arithmetic number, because the mean of its divisors is an integer number (3749040).

Almost surely, 2^139772736 is an apocalyptic number.

139772736 is a gapful number since it is divisible by the number (16) 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 139772736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (209946240).

139772736 is an abundant number, since it is smaller than the sum of its proper divisors (280119744).

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

139772736 is a wasteful number, since it uses less digits than its factorization.

139772736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1789 (or 1773 counting only the distinct ones).

The product of its digits is 333396, while the sum is 45.

The square root of 139772736 is about 11822.5520087670. The cubic root of 139772736 is about 518.9682896861.

The spelling of 139772736 in words is "one hundred thirty-nine million, seven hundred seventy-two thousand, seven hundred thirty-six".