245000431 has 4 divisors (see below), whose sum is σ = 263846632. Its totient is φ = 226154232.

The previous prime is 245000423. The next prime is 245000453. The reversal of 245000431 is 134000542.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 245000431 - 2³ = 245000423 is a prime.

It is a super-2 number, since 2×245000431² = 120050422380371522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 245000399 and 245000408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245000401) 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 3 ways as a sum of consecutive naturals, for example, 9423081 + ... + 9423106.

It is an arithmetic number, because the mean of its divisors is an integer number (65961658).

Almost surely, 2^245000431 is an apocalyptic number.

245000431 is a deficient number, since it is larger than the sum of its proper divisors (18846201).

245000431 is a wasteful number, since it uses less digits than its factorization.

245000431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18846200.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 245000431 is about 15652.4896102824. The cubic root of 245000431 is about 625.7328414935.

Adding to 245000431 its reverse (134000542), we get a palindrome (379000973).

The spelling of 245000431 in words is "two hundred forty-five million, four hundred thirty-one", and thus it is an aban number.