139379100 has 144 divisors (see below), whose sum is σ = 475969536. Its totient is φ = 30816000.

The previous prime is 139379099. The next prime is 139379101. The reversal of 139379100 is 1973931.

It is an interprime number because it is at equal distance from previous prime (139379099) and next prime (139379101).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139379101) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 64030 + ... + 66170.

It is an arithmetic number, because the mean of its divisors is an integer number (3305344).

Almost surely, 2^139379100 is an apocalyptic number.

139379100 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 139379100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (237984768).

139379100 is an abundant number, since it is smaller than the sum of its proper divisors (336590436).

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

139379100 is a wasteful number, since it uses less digits than its factorization.

139379100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2196 (or 2189 counting only the distinct ones).

The product of its (nonzero) digits is 5103, while the sum is 33.

The square root of 139379100 is about 11805.8925964960. The cubic root of 139379100 is about 518.4806488657.

The spelling of 139379100 in words is "one hundred thirty-nine million, three hundred seventy-nine thousand, one hundred".