245543136 has 24 divisors (see below), whose sum is σ = 644550984. Its totient is φ = 81847680.

The previous prime is 245543113. The next prime is 245543153. The reversal of 245543136 is 631345542.

It is a tau number, because it is divible by the number of its divisors (24).

It is a junction number, because it is equal to n+sod(n) for n = 245543097 and 245543106.

It is a congruent number.

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, 1278775 + ... + 1278966.

It is an arithmetic number, because the mean of its divisors is an integer number (26856291).

Almost surely, 2^245543136 is an apocalyptic number.

It is an amenable number.

245543136 is an abundant number, since it is smaller than the sum of its proper divisors (399007848).

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

245543136 is a wasteful number, since it uses less digits than its factorization.

245543136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2557754 (or 2557746 counting only the distinct ones).

The product of its digits is 43200, while the sum is 33.

The square root of 245543136 is about 15669.8160806054. The cubic root of 245543136 is about 626.1945249086.

Adding to 245543136 its reverse (631345542), we get a palindrome (876888678).

The spelling of 245543136 in words is "two hundred forty-five million, five hundred forty-three thousand, one hundred thirty-six".