245331363133541 has 4 divisors (see below), whose sum is σ = 245332268496012. Its totient is φ = 245330457771072.

The previous prime is 245331363133511. The next prime is 245331363133543. The reversal of 245331363133541 is 145331363133542.

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 125984259481441 + 119347103652100 = 11224271^2 + 10924610^2 .

It is a cyclic number.

It is not a de Polignac number, because 245331363133541 - 2⁶ = 245331363133477 is a prime.

It is a super-2 number, since 2×245331363133541² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245331363133543) 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, 452274650 + ... + 452816763.

It is an arithmetic number, because the mean of its divisors is an integer number (61333067124003).

Almost surely, 2^{245331363133541} is an apocalyptic number.

It is an amenable number.

245331363133541 is a deficient number, since it is larger than the sum of its proper divisors (905362471).

245331363133541 is an equidigital number, since it uses as much as digits as its factorization.

245331363133541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 905362470.

The product of its digits is 3499200, while the sum is 47.

Subtracting from 245331363133541 its reverse (145331363133542), we obtain a palindrome (99999999999999).

The spelling of 245331363133541 in words is "two hundred forty-five trillion, three hundred thirty-one billion, three hundred sixty-three million, one hundred thirty-three thousand, five hundred forty-one".