137428198 has 4 divisors (see below), whose sum is σ = 206142300. Its totient is φ = 68714098.

The previous prime is 137428171. The next prime is 137428199. The reversal of 137428198 is 891824731.

137428198 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 891824731 = 7 ⋅127403533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137428199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34357048 + ... + 34357051.

It is an arithmetic number, because the mean of its divisors is an integer number (51535575).

Almost surely, 2^137428198 is an apocalyptic number.

137428198 is a deficient number, since it is larger than the sum of its proper divisors (68714102).

137428198 is an equidigital number, since it uses as much as digits as its factorization.

137428198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68714101.

The product of its digits is 96768, while the sum is 43.

The square root of 137428198 is about 11722.9773521917. The cubic root of 137428198 is about 516.0501999315.

The spelling of 137428198 in words is "one hundred thirty-seven million, four hundred twenty-eight thousand, one hundred ninety-eight".