139067189 has 4 divisors (see below), whose sum is σ = 141424320. Its totient is φ = 136710060.

The previous prime is 139067183. The next prime is 139067197. The reversal of 139067189 is 981760931.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 981760931 = 17 ⋅57750643.

It is a cyclic number.

It is not a de Polignac number, because 139067189 - 2⁸ = 139066933 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139067183) 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, 1178477 + ... + 1178594.

It is an arithmetic number, because the mean of its divisors is an integer number (35356080).

Almost surely, 2^139067189 is an apocalyptic number.

It is an amenable number.

139067189 is a deficient number, since it is larger than the sum of its proper divisors (2357131).

139067189 is an equidigital number, since it uses as much as digits as its factorization.

139067189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2357130.

The product of its (nonzero) digits is 81648, while the sum is 44.

The square root of 139067189 is about 11792.6752265972. The cubic root of 139067189 is about 518.0935975231.

The spelling of 139067189 in words is "one hundred thirty-nine million, sixty-seven thousand, one hundred eighty-nine".