245712431 has 6 divisors (see below), whose sum is σ = 246490920. Its totient is φ = 244936296.

The previous prime is 245712421. The next prime is 245712443. The reversal of 245712431 is 134217542.

It is not a de Polignac number, because 245712431 - 2¹⁰ = 245711407 is a prime.

It is a super-3 number, since 3×245712431³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 245712394 and 245712403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245712421) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 156830 + ... + 158388.

It is an arithmetic number, because the mean of its divisors is an integer number (41081820).

Almost surely, 2^245712431 is an apocalyptic number.

245712431 is a deficient number, since it is larger than the sum of its proper divisors (778489).

245712431 is an frugal number, since it uses more digits than its factorization.

245712431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2353 (or 1956 counting only the distinct ones).

The product of its digits is 6720, while the sum is 29.

The square root of 245712431 is about 15675.2170957853. The cubic root of 245712431 is about 626.3384062773.

Adding to 245712431 its reverse (134217542), we get a palindrome (379929973).

The spelling of 245712431 in words is "two hundred forty-five million, seven hundred twelve thousand, four hundred thirty-one".