139198560 has 96 divisors (see below), whose sum is σ = 461583360. Its totient is φ = 35163648.

The previous prime is 139198529. The next prime is 139198561. The reversal of 139198560 is 65891931.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139198561) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1489 + ... + 16751.

It is an arithmetic number, because the mean of its divisors is an integer number (4808160).

Almost surely, 2^139198560 is an apocalyptic number.

139198560 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 139198560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (230791680).

139198560 is an abundant number, since it is smaller than the sum of its proper divisors (322384800).

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

139198560 is a wasteful number, since it uses less digits than its factorization.

139198560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15300 (or 15292 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 42.

The square root of 139198560 is about 11798.2439371289. The cubic root of 139198560 is about 518.2566866836.

The spelling of 139198560 in words is "one hundred thirty-nine million, one hundred ninety-eight thousand, five hundred sixty".