245130031 has 2 divisors, whose sum is σ = 245130032. Its totient is φ = 245130030.

The previous prime is 245130029. The next prime is 245130043. The reversal of 245130031 is 130031542.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 245130031 - 2¹ = 245130029 is a prime.

It is a super-2 number, since 2×245130031² = 120177464196121922, which contains 22 as substring.

Together with 245130029, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 245129990 and 245130008.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245130071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122565015 + 122565016.

It is an arithmetic number, because the mean of its divisors is an integer number (122565016).

Almost surely, 2^245130031 is an apocalyptic number.

245130031 is a deficient number, since it is larger than the sum of its proper divisors (1).

245130031 is an equidigital number, since it uses as much as digits as its factorization.

245130031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 245130031 is about 15656.6289794451. The cubic root of 245130031 is about 625.8431551515.

Adding to 245130031 its reverse (130031542), we get a palindrome (375161573).

The spelling of 245130031 in words is "two hundred forty-five million, one hundred thirty thousand, thirty-one".