245231453021 has 8 divisors (see below), whose sum is σ = 252910377984. Its totient is φ = 237642340320.

The previous prime is 245231453011. The next prime is 245231453059. The reversal of 245231453021 is 120354132542.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-245231453021 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 (245231453011) 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, 22447520 + ... + 22458441.

It is an arithmetic number, because the mean of its divisors is an integer number (31613797248).

Almost surely, 2^245231453021 is an apocalyptic number.

It is an amenable number.

245231453021 is a deficient number, since it is larger than the sum of its proper divisors (7678924963).

245231453021 is a wasteful number, since it uses less digits than its factorization.

245231453021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44906131.

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 245231453021 its reverse (120354132542), we get a palindrome (365585585563).

The spelling of 245231453021 in words is "two hundred forty-five billion, two hundred thirty-one million, four hundred fifty-three thousand, twenty-one".