139226727 has 4 divisors (see below), whose sum is σ = 185635640. Its totient is φ = 92817816.

The previous prime is 139226713. The next prime is 139226741. The reversal of 139226727 is 727622931.

139226727 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (139226713) and next prime (139226741).

It is not a de Polignac number, because 139226727 - 2⁶ = 139226663 is a prime.

It is a super-2 number, since 2×139226727² = 38768163022265058, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139226327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23204452 + ... + 23204457.

It is an arithmetic number, because the mean of its divisors is an integer number (46408910).

Almost surely, 2^139226727 is an apocalyptic number.

139226727 is a deficient number, since it is larger than the sum of its proper divisors (46408913).

139226727 is an equidigital number, since it uses as much as digits as its factorization.

139226727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46408912.

The product of its digits is 63504, while the sum is 39.

The square root of 139226727 is about 11799.4375713421. The cubic root of 139226727 is about 518.2916409522.

The spelling of 139226727 in words is "one hundred thirty-nine million, two hundred twenty-six thousand, seven hundred twenty-seven".