245345213355231 has 16 divisors (see below), whose sum is σ = 356913468188928. Its totient is φ = 148674192321600.

The previous prime is 245345213355217. The next prime is 245345213355233. The reversal of 245345213355231 is 132553312543542.

It is not a de Polignac number, because 245345213355231 - 2⁵ = 245345213355199 is a prime.

It is a super-2 number, since 2×245345213355231² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245345213355233) 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, 496658851 + ... + 497152596.

It is an arithmetic number, because the mean of its divisors is an integer number (22307091761808).

Almost surely, 2^{245345213355231} is an apocalyptic number.

245345213355231 is a deficient number, since it is larger than the sum of its proper divisors (111568254833697).

245345213355231 is a wasteful number, since it uses less digits than its factorization.

245345213355231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 993818942.

The product of its digits is 6480000, while the sum is 48.

Adding to 245345213355231 its reverse (132553312543542), we get a palindrome (377898525898773).

The spelling of 245345213355231 in words is "two hundred forty-five trillion, three hundred forty-five billion, two hundred thirteen million, three hundred fifty-five thousand, two hundred thirty-one".