139161146 has 8 divisors (see below), whose sum is σ = 212680404. Its totient is φ = 68267680.

The previous prime is 139161119. The next prime is 139161151. The reversal of 139161146 is 641161931.

139161146 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 138980521 + 180625 = 11789^2 + 425^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 656315 + ... + 656526.

Almost surely, 2^139161146 is an apocalyptic number.

139161146 is a deficient number, since it is larger than the sum of its proper divisors (73519258).

139161146 is a wasteful number, since it uses less digits than its factorization.

139161146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1312896.

The product of its digits is 3888, while the sum is 32.

The square root of 139161146 is about 11796.6582556248. The cubic root of 139161146 is about 518.2102499169.

The spelling of 139161146 in words is "one hundred thirty-nine million, one hundred sixty-one thousand, one hundred forty-six".