245106243 has 20 divisors (see below), whose sum is σ = 377961408. Its totient is φ = 158131440.

The previous prime is 245106233. The next prime is 245106247. The reversal of 245106243 is 342601542.

245106243 is a `hidden beast` number, since 24 + 5 + 10 + 624 + 3 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-245106243 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (245106247) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 46296 + ... + 51317.

Almost surely, 2^245106243 is an apocalyptic number.

245106243 is a deficient number, since it is larger than the sum of its proper divisors (132855165).

245106243 is an equidigital number, since it uses as much as digits as its factorization.

245106243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97656 (or 97647 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 245106243 is about 15655.8692827961. The cubic root of 245106243 is about 625.8229100616.

Adding to 245106243 its reverse (342601542), we get a palindrome (587707785).

The spelling of 245106243 in words is "two hundred forty-five million, one hundred six thousand, two hundred forty-three".