139854330 has 288 divisors, whose sum is σ = 489032640. Its totient is φ = 28123200.

The previous prime is 139854293. The next prime is 139854343. The reversal of 139854330 is 33458931.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 4511415 + ... + 4511445.

It is an arithmetic number, because the mean of its divisors is an integer number (1698030).

Almost surely, 2^139854330 is an apocalyptic number.

139854330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 139854330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (244516320).

139854330 is an abundant number, since it is smaller than the sum of its proper divisors (349178310).

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

139854330 is a wasteful number, since it uses less digits than its factorization.

139854330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103 (or 59 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

The square root of 139854330 is about 11826.0022831048. The cubic root of 139854330 is about 519.0692546830.

The spelling of 139854330 in words is "one hundred thirty-nine million, eight hundred fifty-four thousand, three hundred thirty".