139289760 has 192 divisors, whose sum is σ = 513475200. Its totient is φ = 35168256.

The previous prime is 139289749. The next prime is 139289783. The reversal of 139289760 is 67982931.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 81232 + ... + 82928.

It is an arithmetic number, because the mean of its divisors is an integer number (2674350).

Almost surely, 2^139289760 is an apocalyptic number.

139289760 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 139289760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (256737600).

139289760 is an abundant number, since it is smaller than the sum of its proper divisors (374185440).

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

139289760 is a wasteful number, since it uses less digits than its factorization.

139289760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1740 (or 1726 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The square root of 139289760 is about 11802.1082862343. The cubic root of 139289760 is about 518.3698456397.

The spelling of 139289760 in words is "one hundred thirty-nine million, two hundred eighty-nine thousand, seven hundred sixty".