139771270 has 16 divisors (see below), whose sum is σ = 251907408. Its totient is φ = 55837600.

The previous prime is 139771243. The next prime is 139771273. The reversal of 139771270 is 72177931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139771273) 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, 181 + ... + 16720.

It is an arithmetic number, because the mean of its divisors is an integer number (15744213).

Almost surely, 2^139771270 is an apocalyptic number.

139771270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

139771270 is a deficient number, since it is larger than the sum of its proper divisors (112136138).

139771270 is a wasteful number, since it uses less digits than its factorization.

139771270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17735.

The product of its (nonzero) digits is 18522, while the sum is 37.

The square root of 139771270 is about 11822.4900084542. The cubic root of 139771270 is about 518.9664752880.

It can be divided in two parts, 139771 and 270, that added together give a palindrome (140041).

The spelling of 139771270 in words is "one hundred thirty-nine million, seven hundred seventy-one thousand, two hundred seventy".