139141860 has 96 divisors (see below), whose sum is σ = 457736832. Its totient is φ = 31134720.

The previous prime is 139141859. The next prime is 139141897. The reversal of 139141860 is 68141931.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 472 + ... + 16688.

It is an arithmetic number, because the mean of its divisors is an integer number (4768092).

Almost surely, 2^139141860 is an apocalyptic number.

139141860 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 139141860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (228868416).

139141860 is an abundant number, since it is smaller than the sum of its proper divisors (318594972).

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

139141860 is a wasteful number, since it uses less digits than its factorization.

139141860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16253 (or 16251 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 139141860 is about 11795.8407924149. The cubic root of 139141860 is about 518.1863096508.

The spelling of 139141860 in words is "one hundred thirty-nine million, one hundred forty-one thousand, eight hundred sixty".