245543361 has 48 divisors (see below), whose sum is σ = 391849920. Its totient is φ = 136321920.

The previous prime is 245543351. The next prime is 245543371. The reversal of 245543361 is 163345542.

It is an interprime number because it is at equal distance from previous prime (245543351) and next prime (245543371).

It is not a de Polignac number, because 245543361 - 2¹⁵ = 245510593 is a prime.

It is not an unprimeable number, because it can be changed into a prime (245543321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1246315 + ... + 1246511.

It is an arithmetic number, because the mean of its divisors is an integer number (8163540).

Almost surely, 2^245543361 is an apocalyptic number.

245543361 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

245543361 is a deficient number, since it is larger than the sum of its proper divisors (146306559).

245543361 is a wasteful number, since it uses less digits than its factorization.

245543361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414 (or 407 counting only the distinct ones).

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

The square root of 245543361 is about 15669.8232600116. The cubic root of 245543361 is about 626.1947161767.

The spelling of 245543361 in words is "two hundred forty-five million, five hundred forty-three thousand, three hundred sixty-one".