139950189 has 6 divisors (see below), whose sum is σ = 202150286. Its totient is φ = 93300120.

The previous prime is 139950131. The next prime is 139950197. The reversal of 139950189 is 981059931.

139950189 is a `hidden beast` number, since 139 + 9 + 501 + 8 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 129276900 + 10673289 = 11370^2 + 3267^2 .

It is not a de Polignac number, because 139950189 - 2¹¹ = 139948141 is a prime.

It is a super-2 number, since 2×139950189² = 39172110802271442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139950119) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7775002 + ... + 7775019.

Almost surely, 2^139950189 is an apocalyptic number.

It is an amenable number.

139950189 is a deficient number, since it is larger than the sum of its proper divisors (62200097).

139950189 is a wasteful number, since it uses less digits than its factorization.

139950189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15550027 (or 15550024 counting only the distinct ones).

The product of its (nonzero) digits is 87480, while the sum is 45.

The square root of 139950189 is about 11830.0544800098. The cubic root of 139950189 is about 519.1878211365.

The spelling of 139950189 in words is "one hundred thirty-nine million, nine hundred fifty thousand, one hundred eighty-nine".