245233457 has 4 divisors (see below), whose sum is σ = 280266816. Its totient is φ = 210200100.

The previous prime is 245233453. The next prime is 245233487. The reversal of 245233457 is 754332542.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 245233457 - 2² = 245233453 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245233453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17516669 + ... + 17516682.

It is an arithmetic number, because the mean of its divisors is an integer number (70066704).

Almost surely, 2^245233457 is an apocalyptic number.

It is an amenable number.

245233457 is a deficient number, since it is larger than the sum of its proper divisors (35033359).

245233457 is an equidigital number, since it uses as much as digits as its factorization.

245233457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35033358.

The product of its digits is 100800, while the sum is 35.

The square root of 245233457 is about 15659.9315771174. The cubic root of 245233457 is about 625.9311619841.

Adding to 245233457 its reverse (754332542), we get a palindrome (999565999).

The spelling of 245233457 in words is "two hundred forty-five million, two hundred thirty-three thousand, four hundred fifty-seven".