245244031 has 2 divisors, whose sum is σ = 245244032. Its totient is φ = 245244030.

The previous prime is 245243993. The next prime is 245244071. The reversal of 245244031 is 130442542.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 245244031 - 2⁷ = 245243903 is a prime.

It is a super-2 number, since 2×245244031² = 120289269482257922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 245243987 and 245244005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245244071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122622015 + 122622016.

It is an arithmetic number, because the mean of its divisors is an integer number (122622016).

Almost surely, 2^245244031 is an apocalyptic number.

245244031 is a deficient number, since it is larger than the sum of its proper divisors (1).

245244031 is an equidigital number, since it uses as much as digits as its factorization.

245244031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 245244031 is about 15660.2691867030. The cubic root of 245244031 is about 625.9401581750.

Adding to 245244031 its reverse (130442542), we get a palindrome (375686573).

The spelling of 245244031 in words is "two hundred forty-five million, two hundred forty-four thousand, thirty-one".