139650369 has 16 divisors (see below), whose sum is σ = 191615424. Its totient is φ = 90417600.

The previous prime is 139650353. The next prime is 139650391. The reversal of 139650369 is 963056931.

It is not a de Polignac number, because 139650369 - 2⁴ = 139650353 is a prime.

It is a super-2 number, since 2×139650369² = 39004451123672322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 139650369.

It is not an unprimeable number, because it can be changed into a prime (139650169) 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 15 ways as a sum of consecutive naturals, for example, 20359 + ... + 26339.

It is an arithmetic number, because the mean of its divisors is an integer number (11975964).

Almost surely, 2^139650369 is an apocalyptic number.

It is an amenable number.

139650369 is a deficient number, since it is larger than the sum of its proper divisors (51965055).

139650369 is a wasteful number, since it uses less digits than its factorization.

139650369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6208.

The product of its (nonzero) digits is 131220, while the sum is 42.

The square root of 139650369 is about 11817.3757239076. The cubic root of 139650369 is about 518.8167982110.

The spelling of 139650369 in words is "one hundred thirty-nine million, six hundred fifty thousand, three hundred sixty-nine".