139814500 has 96 divisors (see below), whose sum is σ = 357477120. Its totient is φ = 46771200.

The previous prime is 139814473. The next prime is 139814509. The reversal of 139814500 is 5418931.

It is not an unprimeable number, because it can be changed into a prime (139814509) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 150036 + ... + 150964.

It is an arithmetic number, because the mean of its divisors is an integer number (3723720).

Almost surely, 2^139814500 is an apocalyptic number.

139814500 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 139814500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (178738560).

139814500 is an abundant number, since it is smaller than the sum of its proper divisors (217662620).

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

139814500 is a wasteful number, since it uses less digits than its factorization.

139814500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 998 (or 986 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 139814500 is about 11824.3181621606. The cubic root of 139814500 is about 519.0199736646.

It can be divided in two parts, 13981 and 4500, that added together give a palindrome (18481).

The spelling of 139814500 in words is "one hundred thirty-nine million, eight hundred fourteen thousand, five hundred".