139659722 has 8 divisors (see below), whose sum is σ = 209812356. Its totient is φ = 69722272.

The previous prime is 139659721. The next prime is 139659733. The reversal of 139659722 is 227956931.

It can be written as a sum of positive squares in 2 ways, for example, as 134815321 + 4844401 = 11611^2 + 2201^2 .

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 (139659721) 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 in 3 ways as a sum of consecutive naturals, for example, 52163 + ... + 54774.

Almost surely, 2^139659722 is an apocalyptic number.

139659722 is a deficient number, since it is larger than the sum of its proper divisors (70152634).

139659722 is a wasteful number, since it uses less digits than its factorization.

139659722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107592.

The product of its digits is 204120, while the sum is 44.

The square root of 139659722 is about 11817.7714481200. The cubic root of 139659722 is about 518.8283804341.

The spelling of 139659722 in words is "one hundred thirty-nine million, six hundred fifty-nine thousand, seven hundred twenty-two".