137485 has 8 divisors (see below), whose sum is σ = 170496. Its totient is φ = 106320.

The previous prime is 137483. The next prime is 137491. The reversal of 137485 is 584731.

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

It is not a de Polignac number, because 137485 - 2¹ = 137483 is a prime.

It is a Duffinian number.

It is a plaindrome in base 7.

It is a zygodrome in base 7.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137483) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 289 + ... + 598.

It is an arithmetic number, because the mean of its divisors is an integer number (21312).

2¹³⁷⁴⁸⁵ is an apocalyptic number.

It is an amenable number.

137485 is a deficient number, since it is larger than the sum of its proper divisors (33011).

137485 is an equidigital number, since it uses as much as digits as its factorization.

137485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 923.

The product of its digits is 3360, while the sum is 28.

The square root of 137485 is about 370.7896978073. The cubic root of 137485 is about 51.6121288316.

The spelling of 137485 in words is "one hundred thirty-seven thousand, four hundred eighty-five".