138966373 has 16 divisors (see below), whose sum is σ = 171316096. Its totient is φ = 109771200.

The previous prime is 138966367. The next prime is 138966407. The reversal of 138966373 is 373669831.

It is not a de Polignac number, because 138966373 - 2⁵ = 138966341 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138966353) 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, 94915 + ... + 96367.

It is an arithmetic number, because the mean of its divisors is an integer number (10707256).

Almost surely, 2^138966373 is an apocalyptic number.

138966373 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

138966373 is a deficient number, since it is larger than the sum of its proper divisors (32349723).

138966373 is a wasteful number, since it uses less digits than its factorization.

138966373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2524.

The product of its digits is 489888, while the sum is 46.

The square root of 138966373 is about 11788.3999338333. The cubic root of 138966373 is about 517.9683708817.

The spelling of 138966373 in words is "one hundred thirty-eight million, nine hundred sixty-six thousand, three hundred seventy-three".