139148266 has 8 divisors (see below), whose sum is σ = 208778724. Its totient is φ = 69555360.

The previous prime is 139148263. The next prime is 139148279. The reversal of 139148266 is 662841931.

It can be written as a sum of positive squares in 2 ways, for example, as 135047641 + 4100625 = 11621^2 + 2025^2 .

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

It is not an unprimeable number, because it can be changed into a prime (139148263) 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, 3316 + ... + 17008.

Almost surely, 2^139148266 is an apocalyptic number.

139148266 is a deficient number, since it is larger than the sum of its proper divisors (69630458).

139148266 is a wasteful number, since it uses less digits than its factorization.

139148266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18776.

The product of its digits is 62208, while the sum is 40.

The square root of 139148266 is about 11796.1123256775. The cubic root of 139148266 is about 518.1942618480.

The spelling of 139148266 in words is "one hundred thirty-nine million, one hundred forty-eight thousand, two hundred sixty-six".