139228373 has 8 divisors (see below), whose sum is σ = 145008000. Its totient is φ = 133554960.

The previous prime is 139228363. The next prime is 139228421. The reversal of 139228373 is 373822931.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 139228373 - 2⁴ = 139228357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139228363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23873 + ... + 29126.

It is an arithmetic number, because the mean of its divisors is an integer number (18126000).

Almost surely, 2^139228373 is an apocalyptic number.

It is an amenable number.

139228373 is a deficient number, since it is larger than the sum of its proper divisors (5779627).

139228373 is an equidigital number, since it uses as much as digits as its factorization.

139228373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53107.

The product of its digits is 54432, while the sum is 38.

The square root of 139228373 is about 11799.5073202232. The cubic root of 139228373 is about 518.2936834352.

The spelling of 139228373 in words is "one hundred thirty-nine million, two hundred twenty-eight thousand, three hundred seventy-three".