245455643 has 8 divisors (see below), whose sum is σ = 255566976. Its totient is φ = 235540800.

The previous prime is 245455631. The next prime is 245455697. The reversal of 245455643 is 346554542.

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 245455643 - 2⁸ = 245455387 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 245455597 and 245455606.

It is not an unprimeable number, because it can be changed into a prime (245455603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46571 + ... + 51572.

It is an arithmetic number, because the mean of its divisors is an integer number (31945872).

Almost surely, 2^245455643 is an apocalyptic number.

245455643 is a deficient number, since it is larger than the sum of its proper divisors (10111333).

245455643 is an equidigital number, since it uses as much as digits as its factorization.

245455643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98245.

The product of its digits is 288000, while the sum is 38.

The square root of 245455643 is about 15667.0240632993. The cubic root of 245455643 is about 626.1201399524.

The spelling of 245455643 in words is "two hundred forty-five million, four hundred fifty-five thousand, six hundred forty-three".