139950000 has 180 divisors, whose sum is σ = 491124816. Its totient is φ = 37200000.

The previous prime is 139949989. The next prime is 139950023. The reversal of 139950000 is 59931.

It is a tau number, because it is divible by the number of its divisors (180).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 449845 + ... + 450155.

Almost surely, 2^139950000 is an apocalyptic number.

139950000 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 139950000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (245562408).

139950000 is an abundant number, since it is smaller than the sum of its proper divisors (351174816).

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

139950000 is an equidigital number, since it uses as much as digits as its factorization.

139950000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350 (or 321 counting only the distinct ones).

The product of its (nonzero) digits is 1215, while the sum is 27.

The square root of 139950000 is about 11830.0464918782. The cubic root of 139950000 is about 519.1875874187.

The spelling of 139950000 in words is "one hundred thirty-nine million, nine hundred fifty thousand".