137498 has 4 divisors (see below), whose sum is σ = 206250. Its totient is φ = 68748.

The previous prime is 137491. The next prime is 137507. The reversal of 137498 is 894731.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 134689 + 2809 = 367^2 + 53^2 .

It is not an unprimeable number, because it can be changed into a prime (137491) by changing a digit.

137498 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34373 + ... + 34376.

2¹³⁷⁴⁹⁸ is an apocalyptic number.

137498 is a deficient number, since it is larger than the sum of its proper divisors (68752).

137498 is an equidigital number, since it uses as much as digits as its factorization.

137498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68751.

The product of its digits is 6048, while the sum is 32.

The square root of 137498 is about 370.8072275455. The cubic root of 137498 is about 51.6137555219.

The spelling of 137498 in words is "one hundred thirty-seven thousand, four hundred ninety-eight".