139702080 has 112 divisors (see below), whose sum is σ = 506943360. Its totient is φ = 31930368.

The previous prime is 139702063. The next prime is 139702081. The reversal of 139702080 is 80207931.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139702081) 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, 3675 + ... + 17114.

It is an arithmetic number, because the mean of its divisors is an integer number (4526280).

Almost surely, 2^139702080 is an apocalyptic number.

139702080 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 139702080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (253471680).

139702080 is an abundant number, since it is smaller than the sum of its proper divisors (367241280).

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

139702080 is a wasteful number, since it uses less digits than its factorization.

139702080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20816 (or 20806 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 30.

The square root of 139702080 is about 11819.5634437148. The cubic root of 139702080 is about 518.8808276985.

The spelling of 139702080 in words is "one hundred thirty-nine million, seven hundred two thousand, eighty".