139980600 has 144 divisors (see below), whose sum is σ = 494964600. Its totient is φ = 35354880.

The previous prime is 139980571. The next prime is 139980629. The reversal of 139980600 is 6089931.

It is an interprime number because it is at equal distance from previous prime (139980571) and next prime (139980629).

It is a hoax number, since the sum of its digits (36) 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 (36).

It is a congruent number.

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, 32154 + ... + 36246.

Almost surely, 2^139980600 is an apocalyptic number.

139980600 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 139980600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (247482300).

139980600 is an abundant number, since it is smaller than the sum of its proper divisors (354984000).

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

139980600 is a wasteful number, since it uses less digits than its factorization.

139980600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4134 (or 4122 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 139980600 is about 11831.3397381700. The cubic root of 139980600 is about 519.2254246997.

The spelling of 139980600 in words is "one hundred thirty-nine million, nine hundred eighty thousand, six hundred".