245310431 has 2 divisors, whose sum is σ = 245310432. Its totient is φ = 245310430.

The previous prime is 245310353. The next prime is 245310451. The reversal of 245310431 is 134013542.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-245310431 is a prime.

It is a super-2 number, since 2×245310431² = 120354415114811522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 245310397 and 245310406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245310451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122655215 + 122655216.

It is an arithmetic number, because the mean of its divisors is an integer number (122655216).

Almost surely, 2^245310431 is an apocalyptic number.

245310431 is a deficient number, since it is larger than the sum of its proper divisors (1).

245310431 is an equidigital number, since it uses as much as digits as its factorization.

245310431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 245310431 is about 15662.3890578673. The cubic root of 245310431 is about 625.9966443287.

Adding to 245310431 its reverse (134013542), we get a palindrome (379323973).

The spelling of 245310431 in words is "two hundred forty-five million, three hundred ten thousand, four hundred thirty-one".