137323 has 4 divisors (see below), whose sum is σ = 139968. Its totient is φ = 134680.

The previous prime is 137321. The next prime is 137339. The reversal of 137323 is 323731.

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

It is a cyclic number.

It is not a de Polignac number, because 137323 - 2¹ = 137321 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a plaindrome in base 7.

It is a self number, because there is not a number n which added to its sum of digits gives 137323.

It is not an unprimeable number, because it can be changed into a prime (137321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1243 + ... + 1348.

It is an arithmetic number, because the mean of its divisors is an integer number (34992).

2¹³⁷³²³ is an apocalyptic number.

137323 is a deficient number, since it is larger than the sum of its proper divisors (2645).

137323 is an equidigital number, since it uses as much as digits as its factorization.

137323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2644.

The product of its digits is 378, while the sum is 19.

The square root of 137323 is about 370.5711807467. The cubic root of 137323 is about 51.5918491622.

The spelling of 137323 in words is "one hundred thirty-seven thousand, three hundred twenty-three".