245124431 has 2 divisors, whose sum is σ = 245124432. Its totient is φ = 245124430.

The previous prime is 245124421. The next prime is 245124463. The reversal of 245124431 is 134421542.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 245124431 - 2¹⁰ = 245123407 is a prime.

It is a super-2 number, since 2×245124431² = 120171973346147522, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 245124431.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245124421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122562215 + 122562216.

It is an arithmetic number, because the mean of its divisors is an integer number (122562216).

Almost surely, 2^245124431 is an apocalyptic number.

245124431 is a deficient number, since it is larger than the sum of its proper divisors (1).

245124431 is an equidigital number, since it uses as much as digits as its factorization.

245124431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3840, while the sum is 26.

The square root of 245124431 is about 15656.4501404373. The cubic root of 245124431 is about 625.8383893158.

Adding to 245124431 its reverse (134421542), we get a palindrome (379545973).

The spelling of 245124431 in words is "two hundred forty-five million, one hundred twenty-four thousand, four hundred thirty-one".