139575706 has 4 divisors (see below), whose sum is σ = 209363562. Its totient is φ = 69787852.

The previous prime is 139575703. The next prime is 139575719. The reversal of 139575706 is 607575931.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 607575931 = 1213 ⋅500887.

It can be written as a sum of positive squares in only one way, i.e., 81739681 + 57836025 = 9041^2 + 7605^2 .

It is not an unprimeable number, because it can be changed into a prime (139575701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34893925 + ... + 34893928.

Almost surely, 2^139575706 is an apocalyptic number.

139575706 is a deficient number, since it is larger than the sum of its proper divisors (69787856).

139575706 is an equidigital number, since it uses as much as digits as its factorization.

139575706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69787855.

The product of its (nonzero) digits is 198450, while the sum is 43.

The square root of 139575706 is about 11814.2162668541. The cubic root of 139575706 is about 518.7243212527.

The spelling of 139575706 in words is "one hundred thirty-nine million, five hundred seventy-five thousand, seven hundred six".