245019231 has 24 divisors (see below), whose sum is σ = 385398000. Its totient is φ = 149409792.

The previous prime is 245019223. The next prime is 245019241. The reversal of 245019231 is 132910542.

It is not a de Polignac number, because 245019231 - 2³ = 245019223 is a prime.

It is a super-2 number, since 2×245019231² = 120068847119662722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 245019195 and 245019204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245019241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19746 + ... + 29663.

It is an arithmetic number, because the mean of its divisors is an integer number (16058250).

Almost surely, 2^245019231 is an apocalyptic number.

245019231 is a deficient number, since it is larger than the sum of its proper divisors (140378769).

245019231 is a wasteful number, since it uses less digits than its factorization.

245019231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49463 (or 49460 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 245019231 is about 15653.0901422051. The cubic root of 245019231 is about 625.7488461953.

Adding to 245019231 its reverse (132910542), we get a palindrome (377929773).

The spelling of 245019231 in words is "two hundred forty-five million, nineteen thousand, two hundred thirty-one".