139091199 has 8 divisors (see below), whose sum is σ = 199720752. Its totient is φ = 85594560.

The previous prime is 139091131. The next prime is 139091237. The reversal of 139091199 is 991190931.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 139091199 - 2⁸ = 139090943 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 139091199.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139091999) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1783182 + ... + 1783259.

It is an arithmetic number, because the mean of its divisors is an integer number (24965094).

Almost surely, 2^139091199 is an apocalyptic number.

139091199 is a deficient number, since it is larger than the sum of its proper divisors (60629553).

139091199 is a wasteful number, since it uses less digits than its factorization.

139091199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3566457.

The product of its (nonzero) digits is 19683, while the sum is 42.

The square root of 139091199 is about 11793.6931874625. The cubic root of 139091199 is about 518.1234121557.

The spelling of 139091199 in words is "one hundred thirty-nine million, ninety-one thousand, one hundred ninety-nine".