245451513231 has 12 divisors (see below), whose sum is σ = 361230529608. Its totient is φ = 160546901424.

The previous prime is 245451513199. The next prime is 245451513269. The reversal of 245451513231 is 132315154542.

245451513231 is a `hidden beast` number, since 2 + 4 + 5 + 4 + 515 + 132 + 3 + 1 = 666.

It is not a de Polignac number, because 245451513231 - 2⁵ = 245451513199 is a prime.

It is a super-2 number, since 2×245451513231² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245451513331) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 257286225 + ... + 257287178.

It is an arithmetic number, because the mean of its divisors is an integer number (30102544134).

Almost surely, 2^245451513231 is an apocalyptic number.

245451513231 is a deficient number, since it is larger than the sum of its proper divisors (115779016377).

245451513231 is a wasteful number, since it uses less digits than its factorization.

245451513231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514573462 (or 514573459 counting only the distinct ones).

The product of its digits is 72000, while the sum is 36.

Adding to 245451513231 its reverse (132315154542), we get a palindrome (377766667773).

The spelling of 245451513231 in words is "two hundred forty-five billion, four hundred fifty-one million, five hundred thirteen thousand, two hundred thirty-one".