245143061449 has 16 divisors (see below), whose sum is σ = 288030443904. Its totient is φ = 205692883200.

The previous prime is 245143061407. The next prime is 245143061453. The reversal of 245143061449 is 944160341542.

It is a cyclic number.

It is not a de Polignac number, because 245143061449 - 2⁹ = 245143060937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245143061459) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1359889 + ... + 1529569.

It is an arithmetic number, because the mean of its divisors is an integer number (18001902744).

Almost surely, 2^245143061449 is an apocalyptic number.

It is an amenable number.

245143061449 is a deficient number, since it is larger than the sum of its proper divisors (42887382455).

245143061449 is a wasteful number, since it uses less digits than its factorization.

245143061449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179808.

The product of its (nonzero) digits is 414720, while the sum is 43.

The spelling of 245143061449 in words is "two hundred forty-five billion, one hundred forty-three million, sixty-one thousand, four hundred forty-nine".