245137 has 8 divisors (see below), whose sum is σ = 259200. Its totient is φ = 231504.

The previous prime is 245131. The next prime is 245149. The reversal of 245137 is 731542.

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

It is a cyclic number.

It is not a de Polignac number, because 245137 - 2³ = 245129 is a prime.

It is a super-4 number, since 4×245137⁴ (a number of 23 digits) contains 4444 as substring.

It is an Ulam number.

It is a Duffinian number.

245137 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (245131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2238 + ... + 2344.

It is an arithmetic number, because the mean of its divisors is an integer number (32400).

2²⁴⁵¹³⁷ is an apocalyptic number.

It is an amenable number.

245137 is a deficient number, since it is larger than the sum of its proper divisors (14063).

245137 is a wasteful number, since it uses less digits than its factorization.

245137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215.

The product of its digits is 840, while the sum is 22.

The square root of 245137 is about 495.1131183881. The cubic root of 245137 is about 62.5849085962.

Adding to 245137 its reverse (731542), we get a palindrome (976679).

The spelling of 245137 in words is "two hundred forty-five thousand, one hundred thirty-seven".