139993038 has 24 divisors (see below), whose sum is σ = 303884568. Its totient is φ = 46577232.

The previous prime is 139993037. The next prime is 139993067. The reversal of 139993038 is 830399931.

139993038 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 139992984 and 139993002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139993031) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3045 + ... + 17007.

It is an arithmetic number, because the mean of its divisors is an integer number (12661857).

Almost surely, 2^139993038 is an apocalyptic number.

139993038 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

139993038 is an abundant number, since it is smaller than the sum of its proper divisors (163891530).

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

139993038 is a wasteful number, since it uses less digits than its factorization.

139993038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14528 (or 14525 counting only the distinct ones).

The product of its (nonzero) digits is 157464, while the sum is 45.

The square root of 139993038 is about 11831.8653643456. The cubic root of 139993038 is about 519.2408028653.

The spelling of 139993038 in words is "one hundred thirty-nine million, nine hundred ninety-three thousand, thirty-eight".