137045 has 4 divisors (see below), whose sum is σ = 164460. Its totient is φ = 109632.

The previous prime is 137029. The next prime is 137077. The reversal of 137045 is 540731.

It is a happy number.

137045 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: 540731 = 151 ⋅3581.

It can be written as a sum of positive squares in 2 ways, for example, as 22801 + 114244 = 151^2 + 338^2 .

It is a cyclic number.

It is not a de Polignac number, because 137045 - 2⁴ = 137029 is a prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 137045.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13700 + ... + 13709.

It is an arithmetic number, because the mean of its divisors is an integer number (41115).

2¹³⁷⁰⁴⁵ is an apocalyptic number.

It is an amenable number.

137045 is a deficient number, since it is larger than the sum of its proper divisors (27415).

137045 is an equidigital number, since it uses as much as digits as its factorization.

137045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27414.

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 137045 is about 370.1958940885. The cubic root of 137045 is about 51.5570110472.

Adding to 137045 its reverse (540731), we get a palindrome (677776).

The spelling of 137045 in words is "one hundred thirty-seven thousand, forty-five".