139066038 has 16 divisors (see below), whose sum is σ = 309035760. Its totient is φ = 46355328.

The previous prime is 139066033. The next prime is 139066051. The reversal of 139066038 is 830660931.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 139065993 and 139066011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139066033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1287595 + ... + 1287702.

It is an arithmetic number, because the mean of its divisors is an integer number (19314735).

Almost surely, 2^139066038 is an apocalyptic number.

139066038 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

139066038 is an abundant number, since it is smaller than the sum of its proper divisors (169969722).

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

139066038 is a wasteful number, since it uses less digits than its factorization.

139066038 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2575308 (or 2575302 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 139066038 is about 11792.6264250166. The cubic root of 139066038 is about 518.0921681723.

The spelling of 139066038 in words is "one hundred thirty-nine million, sixty-six thousand, thirty-eight".