139780227 has 8 divisors (see below), whose sum is σ = 186445840. Its totient is φ = 93150720.

The previous prime is 139780213. The next prime is 139780237. The reversal of 139780227 is 722087931.

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

It is not a de Polignac number, because 139780227 - 2⁷ = 139780099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (139780237) 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, 1899 + ... + 16827.

It is an arithmetic number, because the mean of its divisors is an integer number (23305730).

Almost surely, 2^139780227 is an apocalyptic number.

139780227 is a deficient number, since it is larger than the sum of its proper divisors (46665613).

139780227 is a wasteful number, since it uses less digits than its factorization.

139780227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18053.

The product of its (nonzero) digits is 42336, while the sum is 39.

The square root of 139780227 is about 11822.8688142938. The cubic root of 139780227 is about 518.9775607407.

The spelling of 139780227 in words is "one hundred thirty-nine million, seven hundred eighty thousand, two hundred twenty-seven".