139227227 has 4 divisors (see below), whose sum is σ = 139719480. Its totient is φ = 138734976.

The previous prime is 139227217. The next prime is 139227247. The reversal of 139227227 is 722722931.

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

It is a cyclic number.

It is not a de Polignac number, because 139227227 - 2¹² = 139223131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (139227217) 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, 245702 + ... + 246267.

It is an arithmetic number, because the mean of its divisors is an integer number (34929870).

Almost surely, 2^139227227 is an apocalyptic number.

139227227 is a deficient number, since it is larger than the sum of its proper divisors (492253).

139227227 is an equidigital number, since it uses as much as digits as its factorization.

139227227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492252.

The product of its digits is 21168, while the sum is 35.

The square root of 139227227 is about 11799.4587587736. The cubic root of 139227227 is about 518.2922613923.

The spelling of 139227227 in words is "one hundred thirty-nine million, two hundred twenty-seven thousand, two hundred twenty-seven".