139010198 has 4 divisors (see below), whose sum is σ = 208515300. Its totient is φ = 69505098.

The previous prime is 139010197. The next prime is 139010219. The reversal of 139010198 is 891010931.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 891010931 = 53 ⋅16811527.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139010191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34752548 + ... + 34752551.

It is an arithmetic number, because the mean of its divisors is an integer number (52128825).

Almost surely, 2^139010198 is an apocalyptic number.

139010198 is a deficient number, since it is larger than the sum of its proper divisors (69505102).

139010198 is an equidigital number, since it uses as much as digits as its factorization.

139010198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69505101.

The product of its (nonzero) digits is 1944, while the sum is 32.

The square root of 139010198 is about 11790.2586061545. The cubic root of 139010198 is about 518.0228146956.

The spelling of 139010198 in words is "one hundred thirty-nine million, ten thousand, one hundred ninety-eight".