245422457 has 16 divisors (see below), whose sum is σ = 287738880. Its totient is φ = 204945552.

The previous prime is 245422453. The next prime is 245422469. The reversal of 245422457 is 754224542.

It is not a de Polignac number, because 245422457 - 2² = 245422453 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245422453) 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, 156644 + ... + 158202.

It is an arithmetic number, because the mean of its divisors is an integer number (17983680).

Almost surely, 2^245422457 is an apocalyptic number.

It is an amenable number.

245422457 is a deficient number, since it is larger than the sum of its proper divisors (42316423).

245422457 is a wasteful number, since it uses less digits than its factorization.

245422457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2132.

The product of its digits is 89600, while the sum is 35.

The square root of 245422457 is about 15665.9649240001. The cubic root of 245422457 is about 626.0919211954.

Adding to 245422457 its reverse (754224542), we get a palindrome (999646999).

The spelling of 245422457 in words is "two hundred forty-five million, four hundred twenty-two thousand, four hundred fifty-seven".