245365474133 has 4 divisors (see below), whose sum is σ = 264239741388. Its totient is φ = 226491206880.

The previous prime is 245365474129. The next prime is 245365474153. The reversal of 245365474133 is 331474563542.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 148396759729 + 96968714404 = 385223^2 + 311398^2 .

It is a cyclic number.

It is not a de Polignac number, because 245365474133 - 2² = 245365474129 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245365474153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9437133608 + ... + 9437133633.

It is an arithmetic number, because the mean of its divisors is an integer number (66059935347).

Almost surely, 2^245365474133 is an apocalyptic number.

It is an amenable number.

245365474133 is a deficient number, since it is larger than the sum of its proper divisors (18874267255).

245365474133 is a wasteful number, since it uses less digits than its factorization.

245365474133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18874267254.

The product of its digits is 3628800, while the sum is 47.

The spelling of 245365474133 in words is "two hundred forty-five billion, three hundred sixty-five million, four hundred seventy-four thousand, one hundred thirty-three".