139621300 has 144 divisors (see below), whose sum is σ = 380114560. Its totient is φ = 43338240.

The previous prime is 139621297. The next prime is 139621319. The reversal of 139621300 is 3126931.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 609586 + ... + 609814.

Almost surely, 2^139621300 is an apocalyptic number.

139621300 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 139621300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (190057280).

139621300 is an abundant number, since it is smaller than the sum of its proper divisors (240493260).

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

139621300 is a wasteful number, since it uses less digits than its factorization.

139621300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330 (or 323 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 25.

The square root of 139621300 is about 11816.1457336984. The cubic root of 139621300 is about 518.7807975135.

The spelling of 139621300 in words is "one hundred thirty-nine million, six hundred twenty-one thousand, three hundred".