139018038 has 32 divisors (see below), whose sum is σ = 284290560. Its totient is φ = 45308640.

The previous prime is 139018037. The next prime is 139018063. The reversal of 139018038 is 830810931.

139018038 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139018031) 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, 49348 + ... + 52088.

It is an arithmetic number, because the mean of its divisors is an integer number (8884080).

Almost surely, 2^139018038 is an apocalyptic number.

139018038 is an abundant number, since it is smaller than the sum of its proper divisors (145272522).

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

139018038 is a wasteful number, since it uses less digits than its factorization.

139018038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2932.

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 139018038 is about 11790.5910793310. The cubic root of 139018038 is about 518.0325531238.

Adding to 139018038 its reverse (830810931), we get a palindrome (969828969).

The spelling of 139018038 in words is "one hundred thirty-nine million, eighteen thousand, thirty-eight".