245136 has 20 divisors (see below), whose sum is σ = 633392. Its totient is φ = 81696.

The previous prime is 245131. The next prime is 245149. The reversal of 245136 is 631542.

It is a happy number.

It is a super-4 number, since 4×245136⁴ (a number of 23 digits) contains 4444 as substring.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 245136.

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

245136 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2506 + ... + 2601.

2²⁴⁵¹³⁶ is an apocalyptic number.

It is an amenable number.

245136 is an abundant number, since it is smaller than the sum of its proper divisors (388256).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

245136 is a wasteful number, since it uses less digits than its factorization.

245136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5118 (or 5112 counting only the distinct ones).

The product of its digits is 720, while the sum is 21.

The square root of 245136 is about 495.1121085168. The cubic root of 245136 is about 62.5848234942.

Adding to 245136 its reverse (631542), we get a palindrome (876678).

The spelling of 245136 in words is "two hundred forty-five thousand, one hundred thirty-six".