245450231 has 16 divisors (see below), whose sum is σ = 272808480. Its totient is φ = 219386880.

The previous prime is 245450221. The next prime is 245450237. The reversal of 245450231 is 132054542.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-245450231 is a prime.

It is a super-2 number, since 2×245450231² = 120491631795906722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 245450231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245450237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72431 + ... + 75743.

It is an arithmetic number, because the mean of its divisors is an integer number (17050530).

Almost surely, 2^245450231 is an apocalyptic number.

245450231 is a deficient number, since it is larger than the sum of its proper divisors (27358249).

245450231 is a wasteful number, since it uses less digits than its factorization.

245450231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3506.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 245450231 is about 15666.8513428832. The cubic root of 245450231 is about 626.1155381880.

The spelling of 245450231 in words is "two hundred forty-five million, four hundred fifty thousand, two hundred thirty-one".